1 /* 2 * Zoran zr36057/zr36067 PCI controller driver, for the 3 * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux 4 * Media Labs LML33/LML33R10. 5 * 6 * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx> 7 * 8 * Changes for BUZ by Wolfgang Scherr <scherr@net4you.net> 9 * 10 * Changes for DC10/DC30 by Laurent Pinchart <laurent.pinchart@skynet.be> 11 * 12 * Changes for LML33R10 by Maxim Yevtyushkin <max@linuxmedialabs.com> 13 * 14 * Changes for videodev2/v4l2 by Ronald Bultje <rbultje@ronald.bitfreak.net> 15 * 16 * Based on 17 * 18 * Miro DC10 driver 19 * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net> 20 * 21 * Iomega Buz driver version 1.0 22 * Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de> 23 * 24 * buz.0.0.3 25 * Copyright (C) 1998 Dave Perks <dperks@ibm.net> 26 * 27 * bttv - Bt848 frame grabber driver 28 * Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de) 29 * & Marcus Metzler (mocm@thp.uni-koeln.de) 30 * 31 * 32 * This program is free software; you can redistribute it and/or modify 33 * it under the terms of the GNU General Public License as published by 34 * the Free Software Foundation; either version 2 of the License, or 35 * (at your option) any later version. 36 * 37 * This program is distributed in the hope that it will be useful, 38 * but WITHOUT ANY WARRANTY; without even the implied warranty of 39 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 40 * GNU General Public License for more details. 41 */ 42 43 #include <linux/init.h> 44 #include <linux/module.h> 45 #include <linux/delay.h> 46 #include <linux/slab.h> 47 #include <linux/pci.h> 48 #include <linux/vmalloc.h> 49 #include <linux/wait.h> 50 51 #include <linux/interrupt.h> 52 #include <linux/i2c.h> 53 #include <linux/i2c-algo-bit.h> 54 55 #include <linux/spinlock.h> 56 57 #include <linux/videodev2.h> 58 #include <media/v4l2-common.h> 59 #include <media/v4l2-ioctl.h> 60 #include <media/v4l2-event.h> 61 #include "videocodec.h" 62 63 #include <asm/byteorder.h> 64 #include <asm/io.h> 65 #include <linux/uaccess.h> 66 #include <linux/proc_fs.h> 67 68 #include <linux/mutex.h> 69 #include "zoran.h" 70 #include "zoran_device.h" 71 #include "zoran_card.h" 72 73 74 const struct zoran_format zoran_formats[] = { 75 { 76 .name = "15-bit RGB LE", 77 .fourcc = V4L2_PIX_FMT_RGB555, 78 .colorspace = V4L2_COLORSPACE_SRGB, 79 .depth = 15, 80 .flags = ZORAN_FORMAT_CAPTURE | 81 ZORAN_FORMAT_OVERLAY, 82 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif| 83 ZR36057_VFESPFR_LittleEndian, 84 }, { 85 .name = "15-bit RGB BE", 86 .fourcc = V4L2_PIX_FMT_RGB555X, 87 .colorspace = V4L2_COLORSPACE_SRGB, 88 .depth = 15, 89 .flags = ZORAN_FORMAT_CAPTURE | 90 ZORAN_FORMAT_OVERLAY, 91 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif, 92 }, { 93 .name = "16-bit RGB LE", 94 .fourcc = V4L2_PIX_FMT_RGB565, 95 .colorspace = V4L2_COLORSPACE_SRGB, 96 .depth = 16, 97 .flags = ZORAN_FORMAT_CAPTURE | 98 ZORAN_FORMAT_OVERLAY, 99 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif| 100 ZR36057_VFESPFR_LittleEndian, 101 }, { 102 .name = "16-bit RGB BE", 103 .fourcc = V4L2_PIX_FMT_RGB565X, 104 .colorspace = V4L2_COLORSPACE_SRGB, 105 .depth = 16, 106 .flags = ZORAN_FORMAT_CAPTURE | 107 ZORAN_FORMAT_OVERLAY, 108 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif, 109 }, { 110 .name = "24-bit RGB", 111 .fourcc = V4L2_PIX_FMT_BGR24, 112 .colorspace = V4L2_COLORSPACE_SRGB, 113 .depth = 24, 114 .flags = ZORAN_FORMAT_CAPTURE | 115 ZORAN_FORMAT_OVERLAY, 116 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_Pack24, 117 }, { 118 .name = "32-bit RGB LE", 119 .fourcc = V4L2_PIX_FMT_BGR32, 120 .colorspace = V4L2_COLORSPACE_SRGB, 121 .depth = 32, 122 .flags = ZORAN_FORMAT_CAPTURE | 123 ZORAN_FORMAT_OVERLAY, 124 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_LittleEndian, 125 }, { 126 .name = "32-bit RGB BE", 127 .fourcc = V4L2_PIX_FMT_RGB32, 128 .colorspace = V4L2_COLORSPACE_SRGB, 129 .depth = 32, 130 .flags = ZORAN_FORMAT_CAPTURE | 131 ZORAN_FORMAT_OVERLAY, 132 .vfespfr = ZR36057_VFESPFR_RGB888, 133 }, { 134 .name = "4:2:2, packed, YUYV", 135 .fourcc = V4L2_PIX_FMT_YUYV, 136 .colorspace = V4L2_COLORSPACE_SMPTE170M, 137 .depth = 16, 138 .flags = ZORAN_FORMAT_CAPTURE | 139 ZORAN_FORMAT_OVERLAY, 140 .vfespfr = ZR36057_VFESPFR_YUV422, 141 }, { 142 .name = "4:2:2, packed, UYVY", 143 .fourcc = V4L2_PIX_FMT_UYVY, 144 .colorspace = V4L2_COLORSPACE_SMPTE170M, 145 .depth = 16, 146 .flags = ZORAN_FORMAT_CAPTURE | 147 ZORAN_FORMAT_OVERLAY, 148 .vfespfr = ZR36057_VFESPFR_YUV422|ZR36057_VFESPFR_LittleEndian, 149 }, { 150 .name = "Hardware-encoded Motion-JPEG", 151 .fourcc = V4L2_PIX_FMT_MJPEG, 152 .colorspace = V4L2_COLORSPACE_SMPTE170M, 153 .depth = 0, 154 .flags = ZORAN_FORMAT_CAPTURE | 155 ZORAN_FORMAT_PLAYBACK | 156 ZORAN_FORMAT_COMPRESSED, 157 } 158 }; 159 #define NUM_FORMATS ARRAY_SIZE(zoran_formats) 160 161 /* small helper function for calculating buffersizes for v4l2 162 * we calculate the nearest higher power-of-two, which 163 * will be the recommended buffersize */ 164 static __u32 165 zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings) 166 { 167 __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm; 168 __u32 num = (1024 * 512) / (div); 169 __u32 result = 2; 170 171 num--; 172 while (num) { 173 num >>= 1; 174 result <<= 1; 175 } 176 177 if (result > jpg_bufsize) 178 return jpg_bufsize; 179 if (result < 8192) 180 return 8192; 181 return result; 182 } 183 184 /* forward references */ 185 static void v4l_fbuffer_free(struct zoran_fh *fh); 186 static void jpg_fbuffer_free(struct zoran_fh *fh); 187 188 /* Set mapping mode */ 189 static void map_mode_raw(struct zoran_fh *fh) 190 { 191 fh->map_mode = ZORAN_MAP_MODE_RAW; 192 fh->buffers.buffer_size = v4l_bufsize; 193 fh->buffers.num_buffers = v4l_nbufs; 194 } 195 static void map_mode_jpg(struct zoran_fh *fh, int play) 196 { 197 fh->map_mode = play ? ZORAN_MAP_MODE_JPG_PLAY : ZORAN_MAP_MODE_JPG_REC; 198 fh->buffers.buffer_size = jpg_bufsize; 199 fh->buffers.num_buffers = jpg_nbufs; 200 } 201 static inline const char *mode_name(enum zoran_map_mode mode) 202 { 203 return mode == ZORAN_MAP_MODE_RAW ? "V4L" : "JPG"; 204 } 205 206 /* 207 * Allocate the V4L grab buffers 208 * 209 * These have to be pysically contiguous. 210 */ 211 212 static int v4l_fbuffer_alloc(struct zoran_fh *fh) 213 { 214 struct zoran *zr = fh->zr; 215 int i, off; 216 unsigned char *mem; 217 218 for (i = 0; i < fh->buffers.num_buffers; i++) { 219 if (fh->buffers.buffer[i].v4l.fbuffer) 220 dprintk(2, 221 KERN_WARNING 222 "%s: %s - buffer %d already allocated!?\n", 223 ZR_DEVNAME(zr), __func__, i); 224 225 //udelay(20); 226 mem = kmalloc(fh->buffers.buffer_size, 227 GFP_KERNEL | __GFP_NOWARN); 228 if (!mem) { 229 dprintk(1, 230 KERN_ERR 231 "%s: %s - kmalloc for V4L buf %d failed\n", 232 ZR_DEVNAME(zr), __func__, i); 233 v4l_fbuffer_free(fh); 234 return -ENOBUFS; 235 } 236 fh->buffers.buffer[i].v4l.fbuffer = mem; 237 fh->buffers.buffer[i].v4l.fbuffer_phys = virt_to_phys(mem); 238 fh->buffers.buffer[i].v4l.fbuffer_bus = virt_to_bus(mem); 239 for (off = 0; off < fh->buffers.buffer_size; 240 off += PAGE_SIZE) 241 SetPageReserved(virt_to_page(mem + off)); 242 dprintk(4, 243 KERN_INFO 244 "%s: %s - V4L frame %d mem 0x%lx (bus: 0x%llx)\n", 245 ZR_DEVNAME(zr), __func__, i, (unsigned long) mem, 246 (unsigned long long)virt_to_bus(mem)); 247 } 248 249 fh->buffers.allocated = 1; 250 251 return 0; 252 } 253 254 /* free the V4L grab buffers */ 255 static void v4l_fbuffer_free(struct zoran_fh *fh) 256 { 257 struct zoran *zr = fh->zr; 258 int i, off; 259 unsigned char *mem; 260 261 dprintk(4, KERN_INFO "%s: %s\n", ZR_DEVNAME(zr), __func__); 262 263 for (i = 0; i < fh->buffers.num_buffers; i++) { 264 if (!fh->buffers.buffer[i].v4l.fbuffer) 265 continue; 266 267 mem = fh->buffers.buffer[i].v4l.fbuffer; 268 for (off = 0; off < fh->buffers.buffer_size; 269 off += PAGE_SIZE) 270 ClearPageReserved(virt_to_page(mem + off)); 271 kfree(fh->buffers.buffer[i].v4l.fbuffer); 272 fh->buffers.buffer[i].v4l.fbuffer = NULL; 273 } 274 275 fh->buffers.allocated = 0; 276 } 277 278 /* 279 * Allocate the MJPEG grab buffers. 280 * 281 * If a Natoma chipset is present and this is a revision 1 zr36057, 282 * each MJPEG buffer needs to be physically contiguous. 283 * (RJ: This statement is from Dave Perks' original driver, 284 * I could never check it because I have a zr36067) 285 * 286 * RJ: The contents grab buffers needs never be accessed in the driver. 287 * Therefore there is no need to allocate them with vmalloc in order 288 * to get a contiguous virtual memory space. 289 * I don't understand why many other drivers first allocate them with 290 * vmalloc (which uses internally also get_zeroed_page, but delivers you 291 * virtual addresses) and then again have to make a lot of efforts 292 * to get the physical address. 293 * 294 * Ben Capper: 295 * On big-endian architectures (such as ppc) some extra steps 296 * are needed. When reading and writing to the stat_com array 297 * and fragment buffers, the device expects to see little- 298 * endian values. The use of cpu_to_le32() and le32_to_cpu() 299 * in this function (and one or two others in zoran_device.c) 300 * ensure that these values are always stored in little-endian 301 * form, regardless of architecture. The zr36057 does Very Bad 302 * Things on big endian architectures if the stat_com array 303 * and fragment buffers are not little-endian. 304 */ 305 306 static int jpg_fbuffer_alloc(struct zoran_fh *fh) 307 { 308 struct zoran *zr = fh->zr; 309 int i, j, off; 310 u8 *mem; 311 312 for (i = 0; i < fh->buffers.num_buffers; i++) { 313 if (fh->buffers.buffer[i].jpg.frag_tab) 314 dprintk(2, 315 KERN_WARNING 316 "%s: %s - buffer %d already allocated!?\n", 317 ZR_DEVNAME(zr), __func__, i); 318 319 /* Allocate fragment table for this buffer */ 320 321 mem = (void *)get_zeroed_page(GFP_KERNEL); 322 if (!mem) { 323 dprintk(1, 324 KERN_ERR 325 "%s: %s - get_zeroed_page (frag_tab) failed for buffer %d\n", 326 ZR_DEVNAME(zr), __func__, i); 327 jpg_fbuffer_free(fh); 328 return -ENOBUFS; 329 } 330 fh->buffers.buffer[i].jpg.frag_tab = (__le32 *)mem; 331 fh->buffers.buffer[i].jpg.frag_tab_bus = virt_to_bus(mem); 332 333 if (fh->buffers.need_contiguous) { 334 mem = kmalloc(fh->buffers.buffer_size, GFP_KERNEL); 335 if (mem == NULL) { 336 dprintk(1, 337 KERN_ERR 338 "%s: %s - kmalloc failed for buffer %d\n", 339 ZR_DEVNAME(zr), __func__, i); 340 jpg_fbuffer_free(fh); 341 return -ENOBUFS; 342 } 343 fh->buffers.buffer[i].jpg.frag_tab[0] = 344 cpu_to_le32(virt_to_bus(mem)); 345 fh->buffers.buffer[i].jpg.frag_tab[1] = 346 cpu_to_le32((fh->buffers.buffer_size >> 1) | 1); 347 for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE) 348 SetPageReserved(virt_to_page(mem + off)); 349 } else { 350 /* jpg_bufsize is already page aligned */ 351 for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) { 352 mem = (void *)get_zeroed_page(GFP_KERNEL); 353 if (mem == NULL) { 354 dprintk(1, 355 KERN_ERR 356 "%s: %s - get_zeroed_page failed for buffer %d\n", 357 ZR_DEVNAME(zr), __func__, i); 358 jpg_fbuffer_free(fh); 359 return -ENOBUFS; 360 } 361 362 fh->buffers.buffer[i].jpg.frag_tab[2 * j] = 363 cpu_to_le32(virt_to_bus(mem)); 364 fh->buffers.buffer[i].jpg.frag_tab[2 * j + 1] = 365 cpu_to_le32((PAGE_SIZE >> 2) << 1); 366 SetPageReserved(virt_to_page(mem)); 367 } 368 369 fh->buffers.buffer[i].jpg.frag_tab[2 * j - 1] |= cpu_to_le32(1); 370 } 371 } 372 373 dprintk(4, 374 KERN_DEBUG "%s: %s - %d KB allocated\n", 375 ZR_DEVNAME(zr), __func__, 376 (fh->buffers.num_buffers * fh->buffers.buffer_size) >> 10); 377 378 fh->buffers.allocated = 1; 379 380 return 0; 381 } 382 383 /* free the MJPEG grab buffers */ 384 static void jpg_fbuffer_free(struct zoran_fh *fh) 385 { 386 struct zoran *zr = fh->zr; 387 int i, j, off; 388 unsigned char *mem; 389 __le32 frag_tab; 390 struct zoran_buffer *buffer; 391 392 dprintk(4, KERN_DEBUG "%s: %s\n", ZR_DEVNAME(zr), __func__); 393 394 for (i = 0, buffer = &fh->buffers.buffer[0]; 395 i < fh->buffers.num_buffers; i++, buffer++) { 396 if (!buffer->jpg.frag_tab) 397 continue; 398 399 if (fh->buffers.need_contiguous) { 400 frag_tab = buffer->jpg.frag_tab[0]; 401 402 if (frag_tab) { 403 mem = bus_to_virt(le32_to_cpu(frag_tab)); 404 for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE) 405 ClearPageReserved(virt_to_page(mem + off)); 406 kfree(mem); 407 buffer->jpg.frag_tab[0] = 0; 408 buffer->jpg.frag_tab[1] = 0; 409 } 410 } else { 411 for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) { 412 frag_tab = buffer->jpg.frag_tab[2 * j]; 413 414 if (!frag_tab) 415 break; 416 ClearPageReserved(virt_to_page(bus_to_virt(le32_to_cpu(frag_tab)))); 417 free_page((unsigned long)bus_to_virt(le32_to_cpu(frag_tab))); 418 buffer->jpg.frag_tab[2 * j] = 0; 419 buffer->jpg.frag_tab[2 * j + 1] = 0; 420 } 421 } 422 423 free_page((unsigned long)buffer->jpg.frag_tab); 424 buffer->jpg.frag_tab = NULL; 425 } 426 427 fh->buffers.allocated = 0; 428 } 429 430 /* 431 * V4L Buffer grabbing 432 */ 433 434 static int 435 zoran_v4l_set_format (struct zoran_fh *fh, 436 int width, 437 int height, 438 const struct zoran_format *format) 439 { 440 struct zoran *zr = fh->zr; 441 int bpp; 442 443 /* Check size and format of the grab wanted */ 444 445 if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH || 446 height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) { 447 dprintk(1, 448 KERN_ERR 449 "%s: %s - wrong frame size (%dx%d)\n", 450 ZR_DEVNAME(zr), __func__, width, height); 451 return -EINVAL; 452 } 453 454 bpp = (format->depth + 7) / 8; 455 456 /* Check against available buffer size */ 457 if (height * width * bpp > fh->buffers.buffer_size) { 458 dprintk(1, 459 KERN_ERR 460 "%s: %s - video buffer size (%d kB) is too small\n", 461 ZR_DEVNAME(zr), __func__, fh->buffers.buffer_size >> 10); 462 return -EINVAL; 463 } 464 465 /* The video front end needs 4-byte alinged line sizes */ 466 467 if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) { 468 dprintk(1, 469 KERN_ERR 470 "%s: %s - wrong frame alignment\n", 471 ZR_DEVNAME(zr), __func__); 472 return -EINVAL; 473 } 474 475 fh->v4l_settings.width = width; 476 fh->v4l_settings.height = height; 477 fh->v4l_settings.format = format; 478 fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width; 479 480 return 0; 481 } 482 483 static int zoran_v4l_queue_frame(struct zoran_fh *fh, int num) 484 { 485 struct zoran *zr = fh->zr; 486 unsigned long flags; 487 int res = 0; 488 489 if (!fh->buffers.allocated) { 490 dprintk(1, 491 KERN_ERR 492 "%s: %s - buffers not yet allocated\n", 493 ZR_DEVNAME(zr), __func__); 494 res = -ENOMEM; 495 } 496 497 /* No grabbing outside the buffer range! */ 498 if (num >= fh->buffers.num_buffers || num < 0) { 499 dprintk(1, 500 KERN_ERR 501 "%s: %s - buffer %d is out of range\n", 502 ZR_DEVNAME(zr), __func__, num); 503 res = -EINVAL; 504 } 505 506 spin_lock_irqsave(&zr->spinlock, flags); 507 508 if (fh->buffers.active == ZORAN_FREE) { 509 if (zr->v4l_buffers.active == ZORAN_FREE) { 510 zr->v4l_buffers = fh->buffers; 511 fh->buffers.active = ZORAN_ACTIVE; 512 } else { 513 dprintk(1, 514 KERN_ERR 515 "%s: %s - another session is already capturing\n", 516 ZR_DEVNAME(zr), __func__); 517 res = -EBUSY; 518 } 519 } 520 521 /* make sure a grab isn't going on currently with this buffer */ 522 if (!res) { 523 switch (zr->v4l_buffers.buffer[num].state) { 524 default: 525 case BUZ_STATE_PEND: 526 if (zr->v4l_buffers.active == ZORAN_FREE) { 527 fh->buffers.active = ZORAN_FREE; 528 zr->v4l_buffers.allocated = 0; 529 } 530 res = -EBUSY; /* what are you doing? */ 531 break; 532 case BUZ_STATE_DONE: 533 dprintk(2, 534 KERN_WARNING 535 "%s: %s - queueing buffer %d in state DONE!?\n", 536 ZR_DEVNAME(zr), __func__, num); 537 /* fall through */ 538 case BUZ_STATE_USER: 539 /* since there is at least one unused buffer there's room for at least 540 * one more pend[] entry */ 541 zr->v4l_pend[zr->v4l_pend_head++ & V4L_MASK_FRAME] = num; 542 zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND; 543 zr->v4l_buffers.buffer[num].bs.length = 544 fh->v4l_settings.bytesperline * 545 zr->v4l_settings.height; 546 fh->buffers.buffer[num] = zr->v4l_buffers.buffer[num]; 547 break; 548 } 549 } 550 551 spin_unlock_irqrestore(&zr->spinlock, flags); 552 553 if (!res && zr->v4l_buffers.active == ZORAN_FREE) 554 zr->v4l_buffers.active = fh->buffers.active; 555 556 return res; 557 } 558 559 /* 560 * Sync on a V4L buffer 561 */ 562 563 static int v4l_sync(struct zoran_fh *fh, int frame) 564 { 565 struct zoran *zr = fh->zr; 566 unsigned long flags; 567 568 if (fh->buffers.active == ZORAN_FREE) { 569 dprintk(1, 570 KERN_ERR 571 "%s: %s - no grab active for this session\n", 572 ZR_DEVNAME(zr), __func__); 573 return -EINVAL; 574 } 575 576 /* check passed-in frame number */ 577 if (frame >= fh->buffers.num_buffers || frame < 0) { 578 dprintk(1, 579 KERN_ERR "%s: %s - frame %d is invalid\n", 580 ZR_DEVNAME(zr), __func__, frame); 581 return -EINVAL; 582 } 583 584 /* Check if is buffer was queued at all */ 585 if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) { 586 dprintk(1, 587 KERN_ERR 588 "%s: %s - attempt to sync on a buffer which was not queued?\n", 589 ZR_DEVNAME(zr), __func__); 590 return -EPROTO; 591 } 592 593 mutex_unlock(&zr->lock); 594 /* wait on this buffer to get ready */ 595 if (!wait_event_interruptible_timeout(zr->v4l_capq, 596 (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND), 10*HZ)) { 597 mutex_lock(&zr->lock); 598 return -ETIME; 599 } 600 mutex_lock(&zr->lock); 601 if (signal_pending(current)) 602 return -ERESTARTSYS; 603 604 /* buffer should now be in BUZ_STATE_DONE */ 605 if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE) 606 dprintk(2, 607 KERN_ERR "%s: %s - internal state error\n", 608 ZR_DEVNAME(zr), __func__); 609 610 zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER; 611 fh->buffers.buffer[frame] = zr->v4l_buffers.buffer[frame]; 612 613 spin_lock_irqsave(&zr->spinlock, flags); 614 615 /* Check if streaming capture has finished */ 616 if (zr->v4l_pend_tail == zr->v4l_pend_head) { 617 zr36057_set_memgrab(zr, 0); 618 if (zr->v4l_buffers.active == ZORAN_ACTIVE) { 619 fh->buffers.active = zr->v4l_buffers.active = ZORAN_FREE; 620 zr->v4l_buffers.allocated = 0; 621 } 622 } 623 624 spin_unlock_irqrestore(&zr->spinlock, flags); 625 626 return 0; 627 } 628 629 /* 630 * Queue a MJPEG buffer for capture/playback 631 */ 632 633 static int zoran_jpg_queue_frame(struct zoran_fh *fh, int num, 634 enum zoran_codec_mode mode) 635 { 636 struct zoran *zr = fh->zr; 637 unsigned long flags; 638 int res = 0; 639 640 /* Check if buffers are allocated */ 641 if (!fh->buffers.allocated) { 642 dprintk(1, 643 KERN_ERR 644 "%s: %s - buffers not yet allocated\n", 645 ZR_DEVNAME(zr), __func__); 646 return -ENOMEM; 647 } 648 649 /* No grabbing outside the buffer range! */ 650 if (num >= fh->buffers.num_buffers || num < 0) { 651 dprintk(1, 652 KERN_ERR 653 "%s: %s - buffer %d out of range\n", 654 ZR_DEVNAME(zr), __func__, num); 655 return -EINVAL; 656 } 657 658 /* what is the codec mode right now? */ 659 if (zr->codec_mode == BUZ_MODE_IDLE) { 660 zr->jpg_settings = fh->jpg_settings; 661 } else if (zr->codec_mode != mode) { 662 /* wrong codec mode active - invalid */ 663 dprintk(1, 664 KERN_ERR 665 "%s: %s - codec in wrong mode\n", 666 ZR_DEVNAME(zr), __func__); 667 return -EINVAL; 668 } 669 670 if (fh->buffers.active == ZORAN_FREE) { 671 if (zr->jpg_buffers.active == ZORAN_FREE) { 672 zr->jpg_buffers = fh->buffers; 673 fh->buffers.active = ZORAN_ACTIVE; 674 } else { 675 dprintk(1, 676 KERN_ERR 677 "%s: %s - another session is already capturing\n", 678 ZR_DEVNAME(zr), __func__); 679 res = -EBUSY; 680 } 681 } 682 683 if (!res && zr->codec_mode == BUZ_MODE_IDLE) { 684 /* Ok load up the jpeg codec */ 685 zr36057_enable_jpg(zr, mode); 686 } 687 688 spin_lock_irqsave(&zr->spinlock, flags); 689 690 if (!res) { 691 switch (zr->jpg_buffers.buffer[num].state) { 692 case BUZ_STATE_DONE: 693 dprintk(2, 694 KERN_WARNING 695 "%s: %s - queing frame in BUZ_STATE_DONE state!?\n", 696 ZR_DEVNAME(zr), __func__); 697 /* fall through */ 698 case BUZ_STATE_USER: 699 /* since there is at least one unused buffer there's room for at 700 *least one more pend[] entry */ 701 zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] = num; 702 zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND; 703 fh->buffers.buffer[num] = zr->jpg_buffers.buffer[num]; 704 zoran_feed_stat_com(zr); 705 break; 706 default: 707 case BUZ_STATE_DMA: 708 case BUZ_STATE_PEND: 709 if (zr->jpg_buffers.active == ZORAN_FREE) { 710 fh->buffers.active = ZORAN_FREE; 711 zr->jpg_buffers.allocated = 0; 712 } 713 res = -EBUSY; /* what are you doing? */ 714 break; 715 } 716 } 717 718 spin_unlock_irqrestore(&zr->spinlock, flags); 719 720 if (!res && zr->jpg_buffers.active == ZORAN_FREE) 721 zr->jpg_buffers.active = fh->buffers.active; 722 723 return res; 724 } 725 726 static int jpg_qbuf(struct zoran_fh *fh, int frame, enum zoran_codec_mode mode) 727 { 728 struct zoran *zr = fh->zr; 729 int res = 0; 730 731 /* Does the user want to stop streaming? */ 732 if (frame < 0) { 733 if (zr->codec_mode == mode) { 734 if (fh->buffers.active == ZORAN_FREE) { 735 dprintk(1, 736 KERN_ERR 737 "%s: %s(-1) - session not active\n", 738 ZR_DEVNAME(zr), __func__); 739 return -EINVAL; 740 } 741 fh->buffers.active = zr->jpg_buffers.active = ZORAN_FREE; 742 zr->jpg_buffers.allocated = 0; 743 zr36057_enable_jpg(zr, BUZ_MODE_IDLE); 744 return 0; 745 } else { 746 dprintk(1, 747 KERN_ERR 748 "%s: %s - stop streaming but not in streaming mode\n", 749 ZR_DEVNAME(zr), __func__); 750 return -EINVAL; 751 } 752 } 753 754 if ((res = zoran_jpg_queue_frame(fh, frame, mode))) 755 return res; 756 757 /* Start the jpeg codec when the first frame is queued */ 758 if (!res && zr->jpg_que_head == 1) 759 jpeg_start(zr); 760 761 return res; 762 } 763 764 /* 765 * Sync on a MJPEG buffer 766 */ 767 768 static int jpg_sync(struct zoran_fh *fh, struct zoran_sync *bs) 769 { 770 struct zoran *zr = fh->zr; 771 unsigned long flags; 772 int frame; 773 774 if (fh->buffers.active == ZORAN_FREE) { 775 dprintk(1, 776 KERN_ERR 777 "%s: %s - capture is not currently active\n", 778 ZR_DEVNAME(zr), __func__); 779 return -EINVAL; 780 } 781 if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS && 782 zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) { 783 dprintk(1, 784 KERN_ERR 785 "%s: %s - codec not in streaming mode\n", 786 ZR_DEVNAME(zr), __func__); 787 return -EINVAL; 788 } 789 mutex_unlock(&zr->lock); 790 if (!wait_event_interruptible_timeout(zr->jpg_capq, 791 (zr->jpg_que_tail != zr->jpg_dma_tail || 792 zr->jpg_dma_tail == zr->jpg_dma_head), 793 10*HZ)) { 794 int isr; 795 796 btand(~ZR36057_JMC_Go_en, ZR36057_JMC); 797 udelay(1); 798 zr->codec->control(zr->codec, CODEC_G_STATUS, 799 sizeof(isr), &isr); 800 mutex_lock(&zr->lock); 801 dprintk(1, 802 KERN_ERR 803 "%s: %s - timeout: codec isr=0x%02x\n", 804 ZR_DEVNAME(zr), __func__, isr); 805 806 return -ETIME; 807 808 } 809 mutex_lock(&zr->lock); 810 if (signal_pending(current)) 811 return -ERESTARTSYS; 812 813 spin_lock_irqsave(&zr->spinlock, flags); 814 815 if (zr->jpg_dma_tail != zr->jpg_dma_head) 816 frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME]; 817 else 818 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME]; 819 820 /* buffer should now be in BUZ_STATE_DONE */ 821 if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE) 822 dprintk(2, 823 KERN_ERR "%s: %s - internal state error\n", 824 ZR_DEVNAME(zr), __func__); 825 826 *bs = zr->jpg_buffers.buffer[frame].bs; 827 bs->frame = frame; 828 zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER; 829 fh->buffers.buffer[frame] = zr->jpg_buffers.buffer[frame]; 830 831 spin_unlock_irqrestore(&zr->spinlock, flags); 832 833 return 0; 834 } 835 836 static void zoran_open_init_session(struct zoran_fh *fh) 837 { 838 int i; 839 struct zoran *zr = fh->zr; 840 841 /* Per default, map the V4L Buffers */ 842 map_mode_raw(fh); 843 844 /* take over the card's current settings */ 845 fh->overlay_settings = zr->overlay_settings; 846 fh->overlay_settings.is_set = 0; 847 fh->overlay_settings.format = zr->overlay_settings.format; 848 fh->overlay_active = ZORAN_FREE; 849 850 /* v4l settings */ 851 fh->v4l_settings = zr->v4l_settings; 852 /* jpg settings */ 853 fh->jpg_settings = zr->jpg_settings; 854 855 /* buffers */ 856 memset(&fh->buffers, 0, sizeof(fh->buffers)); 857 for (i = 0; i < MAX_FRAME; i++) { 858 fh->buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */ 859 fh->buffers.buffer[i].bs.frame = i; 860 } 861 fh->buffers.allocated = 0; 862 fh->buffers.active = ZORAN_FREE; 863 } 864 865 static void zoran_close_end_session(struct zoran_fh *fh) 866 { 867 struct zoran *zr = fh->zr; 868 869 /* overlay */ 870 if (fh->overlay_active != ZORAN_FREE) { 871 fh->overlay_active = zr->overlay_active = ZORAN_FREE; 872 zr->v4l_overlay_active = 0; 873 if (!zr->v4l_memgrab_active) 874 zr36057_overlay(zr, 0); 875 zr->overlay_mask = NULL; 876 } 877 878 if (fh->map_mode == ZORAN_MAP_MODE_RAW) { 879 /* v4l capture */ 880 if (fh->buffers.active != ZORAN_FREE) { 881 unsigned long flags; 882 883 spin_lock_irqsave(&zr->spinlock, flags); 884 zr36057_set_memgrab(zr, 0); 885 zr->v4l_buffers.allocated = 0; 886 zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE; 887 spin_unlock_irqrestore(&zr->spinlock, flags); 888 } 889 890 /* v4l buffers */ 891 if (fh->buffers.allocated) 892 v4l_fbuffer_free(fh); 893 } else { 894 /* jpg capture */ 895 if (fh->buffers.active != ZORAN_FREE) { 896 zr36057_enable_jpg(zr, BUZ_MODE_IDLE); 897 zr->jpg_buffers.allocated = 0; 898 zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE; 899 } 900 901 /* jpg buffers */ 902 if (fh->buffers.allocated) 903 jpg_fbuffer_free(fh); 904 } 905 } 906 907 /* 908 * Open a zoran card. Right now the flags stuff is just playing 909 */ 910 911 static int zoran_open(struct file *file) 912 { 913 struct zoran *zr = video_drvdata(file); 914 struct zoran_fh *fh; 915 int res, first_open = 0; 916 917 dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(-)=%d\n", 918 ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user + 1); 919 920 mutex_lock(&zr->lock); 921 922 if (zr->user >= 2048) { 923 dprintk(1, KERN_ERR "%s: too many users (%d) on device\n", 924 ZR_DEVNAME(zr), zr->user); 925 res = -EBUSY; 926 goto fail_unlock; 927 } 928 929 /* now, create the open()-specific file_ops struct */ 930 fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL); 931 if (!fh) { 932 dprintk(1, 933 KERN_ERR 934 "%s: %s - allocation of zoran_fh failed\n", 935 ZR_DEVNAME(zr), __func__); 936 res = -ENOMEM; 937 goto fail_unlock; 938 } 939 v4l2_fh_init(&fh->fh, video_devdata(file)); 940 941 /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows 942 * on norm-change! */ 943 fh->overlay_mask = 944 kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL); 945 if (!fh->overlay_mask) { 946 dprintk(1, 947 KERN_ERR 948 "%s: %s - allocation of overlay_mask failed\n", 949 ZR_DEVNAME(zr), __func__); 950 res = -ENOMEM; 951 goto fail_fh; 952 } 953 954 if (zr->user++ == 0) 955 first_open = 1; 956 957 /* default setup - TODO: look at flags */ 958 if (first_open) { /* First device open */ 959 zr36057_restart(zr); 960 zoran_open_init_params(zr); 961 zoran_init_hardware(zr); 962 963 btor(ZR36057_ICR_IntPinEn, ZR36057_ICR); 964 } 965 966 /* set file_ops stuff */ 967 file->private_data = fh; 968 fh->zr = zr; 969 zoran_open_init_session(fh); 970 v4l2_fh_add(&fh->fh); 971 mutex_unlock(&zr->lock); 972 973 return 0; 974 975 fail_fh: 976 v4l2_fh_exit(&fh->fh); 977 kfree(fh); 978 fail_unlock: 979 mutex_unlock(&zr->lock); 980 981 dprintk(2, KERN_INFO "%s: open failed (%d), users(-)=%d\n", 982 ZR_DEVNAME(zr), res, zr->user); 983 984 return res; 985 } 986 987 static int 988 zoran_close(struct file *file) 989 { 990 struct zoran_fh *fh = file->private_data; 991 struct zoran *zr = fh->zr; 992 993 dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(+)=%d\n", 994 ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user - 1); 995 996 /* kernel locks (fs/device.c), so don't do that ourselves 997 * (prevents deadlocks) */ 998 mutex_lock(&zr->lock); 999 1000 zoran_close_end_session(fh); 1001 1002 if (zr->user-- == 1) { /* Last process */ 1003 /* Clean up JPEG process */ 1004 wake_up_interruptible(&zr->jpg_capq); 1005 zr36057_enable_jpg(zr, BUZ_MODE_IDLE); 1006 zr->jpg_buffers.allocated = 0; 1007 zr->jpg_buffers.active = ZORAN_FREE; 1008 1009 /* disable interrupts */ 1010 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR); 1011 1012 if (zr36067_debug > 1) 1013 print_interrupts(zr); 1014 1015 /* Overlay off */ 1016 zr->v4l_overlay_active = 0; 1017 zr36057_overlay(zr, 0); 1018 zr->overlay_mask = NULL; 1019 1020 /* capture off */ 1021 wake_up_interruptible(&zr->v4l_capq); 1022 zr36057_set_memgrab(zr, 0); 1023 zr->v4l_buffers.allocated = 0; 1024 zr->v4l_buffers.active = ZORAN_FREE; 1025 zoran_set_pci_master(zr, 0); 1026 1027 if (!pass_through) { /* Switch to color bar */ 1028 decoder_call(zr, video, s_stream, 0); 1029 encoder_call(zr, video, s_routing, 2, 0, 0); 1030 } 1031 } 1032 mutex_unlock(&zr->lock); 1033 1034 v4l2_fh_del(&fh->fh); 1035 v4l2_fh_exit(&fh->fh); 1036 kfree(fh->overlay_mask); 1037 kfree(fh); 1038 1039 dprintk(4, KERN_INFO "%s: %s done\n", ZR_DEVNAME(zr), __func__); 1040 1041 return 0; 1042 } 1043 1044 static int setup_fbuffer(struct zoran_fh *fh, 1045 void *base, 1046 const struct zoran_format *fmt, 1047 int width, 1048 int height, 1049 int bytesperline) 1050 { 1051 struct zoran *zr = fh->zr; 1052 1053 /* (Ronald) v4l/v4l2 guidelines */ 1054 if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO)) 1055 return -EPERM; 1056 1057 /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on 1058 ALi Magik (that needs very low latency while the card needs a 1059 higher value always) */ 1060 1061 if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK)) 1062 return -ENXIO; 1063 1064 /* we need a bytesperline value, even if not given */ 1065 if (!bytesperline) 1066 bytesperline = width * ((fmt->depth + 7) & ~7) / 8; 1067 1068 #if 0 1069 if (zr->overlay_active) { 1070 /* dzjee... stupid users... don't even bother to turn off 1071 * overlay before changing the memory location... 1072 * normally, we would return errors here. However, one of 1073 * the tools that does this is... xawtv! and since xawtv 1074 * is used by +/- 99% of the users, we'd rather be user- 1075 * friendly and silently do as if nothing went wrong */ 1076 dprintk(3, 1077 KERN_ERR 1078 "%s: %s - forced overlay turnoff because framebuffer changed\n", 1079 ZR_DEVNAME(zr), __func__); 1080 zr36057_overlay(zr, 0); 1081 } 1082 #endif 1083 1084 if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) { 1085 dprintk(1, 1086 KERN_ERR 1087 "%s: %s - no valid overlay format given\n", 1088 ZR_DEVNAME(zr), __func__); 1089 return -EINVAL; 1090 } 1091 if (height <= 0 || width <= 0 || bytesperline <= 0) { 1092 dprintk(1, 1093 KERN_ERR 1094 "%s: %s - invalid height/width/bpl value (%d|%d|%d)\n", 1095 ZR_DEVNAME(zr), __func__, width, height, bytesperline); 1096 return -EINVAL; 1097 } 1098 if (bytesperline & 3) { 1099 dprintk(1, 1100 KERN_ERR 1101 "%s: %s - bytesperline (%d) must be 4-byte aligned\n", 1102 ZR_DEVNAME(zr), __func__, bytesperline); 1103 return -EINVAL; 1104 } 1105 1106 zr->vbuf_base = (void *) ((unsigned long) base & ~3); 1107 zr->vbuf_height = height; 1108 zr->vbuf_width = width; 1109 zr->vbuf_depth = fmt->depth; 1110 zr->overlay_settings.format = fmt; 1111 zr->vbuf_bytesperline = bytesperline; 1112 1113 /* The user should set new window parameters */ 1114 zr->overlay_settings.is_set = 0; 1115 1116 return 0; 1117 } 1118 1119 1120 static int setup_window(struct zoran_fh *fh, 1121 int x, 1122 int y, 1123 int width, 1124 int height, 1125 struct v4l2_clip __user *clips, 1126 unsigned int clipcount, 1127 void __user *bitmap) 1128 { 1129 struct zoran *zr = fh->zr; 1130 struct v4l2_clip *vcp = NULL; 1131 int on, end; 1132 1133 1134 if (!zr->vbuf_base) { 1135 dprintk(1, 1136 KERN_ERR 1137 "%s: %s - frame buffer has to be set first\n", 1138 ZR_DEVNAME(zr), __func__); 1139 return -EINVAL; 1140 } 1141 1142 if (!fh->overlay_settings.format) { 1143 dprintk(1, 1144 KERN_ERR 1145 "%s: %s - no overlay format set\n", 1146 ZR_DEVNAME(zr), __func__); 1147 return -EINVAL; 1148 } 1149 1150 if (clipcount > 2048) { 1151 dprintk(1, 1152 KERN_ERR 1153 "%s: %s - invalid clipcount\n", 1154 ZR_DEVNAME(zr), __func__); 1155 return -EINVAL; 1156 } 1157 1158 /* 1159 * The video front end needs 4-byte alinged line sizes, we correct that 1160 * silently here if necessary 1161 */ 1162 if (zr->vbuf_depth == 15 || zr->vbuf_depth == 16) { 1163 end = (x + width) & ~1; /* round down */ 1164 x = (x + 1) & ~1; /* round up */ 1165 width = end - x; 1166 } 1167 1168 if (zr->vbuf_depth == 24) { 1169 end = (x + width) & ~3; /* round down */ 1170 x = (x + 3) & ~3; /* round up */ 1171 width = end - x; 1172 } 1173 1174 if (width > BUZ_MAX_WIDTH) 1175 width = BUZ_MAX_WIDTH; 1176 if (height > BUZ_MAX_HEIGHT) 1177 height = BUZ_MAX_HEIGHT; 1178 1179 /* Check for invalid parameters */ 1180 if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT || 1181 width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) { 1182 dprintk(1, 1183 KERN_ERR 1184 "%s: %s - width = %d or height = %d invalid\n", 1185 ZR_DEVNAME(zr), __func__, width, height); 1186 return -EINVAL; 1187 } 1188 1189 fh->overlay_settings.x = x; 1190 fh->overlay_settings.y = y; 1191 fh->overlay_settings.width = width; 1192 fh->overlay_settings.height = height; 1193 fh->overlay_settings.clipcount = clipcount; 1194 1195 /* 1196 * If an overlay is running, we have to switch it off 1197 * and switch it on again in order to get the new settings in effect. 1198 * 1199 * We also want to avoid that the overlay mask is written 1200 * when an overlay is running. 1201 */ 1202 1203 on = zr->v4l_overlay_active && !zr->v4l_memgrab_active && 1204 zr->overlay_active != ZORAN_FREE && 1205 fh->overlay_active != ZORAN_FREE; 1206 if (on) 1207 zr36057_overlay(zr, 0); 1208 1209 /* 1210 * Write the overlay mask if clips are wanted. 1211 * We prefer a bitmap. 1212 */ 1213 if (bitmap) { 1214 /* fake value - it just means we want clips */ 1215 fh->overlay_settings.clipcount = 1; 1216 1217 if (copy_from_user(fh->overlay_mask, bitmap, 1218 (width * height + 7) / 8)) { 1219 return -EFAULT; 1220 } 1221 } else if (clipcount) { 1222 /* write our own bitmap from the clips */ 1223 vcp = vmalloc(sizeof(struct v4l2_clip) * (clipcount + 4)); 1224 if (vcp == NULL) { 1225 dprintk(1, 1226 KERN_ERR 1227 "%s: %s - Alloc of clip mask failed\n", 1228 ZR_DEVNAME(zr), __func__); 1229 return -ENOMEM; 1230 } 1231 if (copy_from_user 1232 (vcp, clips, sizeof(struct v4l2_clip) * clipcount)) { 1233 vfree(vcp); 1234 return -EFAULT; 1235 } 1236 write_overlay_mask(fh, vcp, clipcount); 1237 vfree(vcp); 1238 } 1239 1240 fh->overlay_settings.is_set = 1; 1241 if (fh->overlay_active != ZORAN_FREE && 1242 zr->overlay_active != ZORAN_FREE) 1243 zr->overlay_settings = fh->overlay_settings; 1244 1245 if (on) 1246 zr36057_overlay(zr, 1); 1247 1248 /* Make sure the changes come into effect */ 1249 return wait_grab_pending(zr); 1250 } 1251 1252 static int setup_overlay(struct zoran_fh *fh, int on) 1253 { 1254 struct zoran *zr = fh->zr; 1255 1256 /* If there is nothing to do, return immediately */ 1257 if ((on && fh->overlay_active != ZORAN_FREE) || 1258 (!on && fh->overlay_active == ZORAN_FREE)) 1259 return 0; 1260 1261 /* check whether we're touching someone else's overlay */ 1262 if (on && zr->overlay_active != ZORAN_FREE && 1263 fh->overlay_active == ZORAN_FREE) { 1264 dprintk(1, 1265 KERN_ERR 1266 "%s: %s - overlay is already active for another session\n", 1267 ZR_DEVNAME(zr), __func__); 1268 return -EBUSY; 1269 } 1270 if (!on && zr->overlay_active != ZORAN_FREE && 1271 fh->overlay_active == ZORAN_FREE) { 1272 dprintk(1, 1273 KERN_ERR 1274 "%s: %s - you cannot cancel someone else's session\n", 1275 ZR_DEVNAME(zr), __func__); 1276 return -EPERM; 1277 } 1278 1279 if (on == 0) { 1280 zr->overlay_active = fh->overlay_active = ZORAN_FREE; 1281 zr->v4l_overlay_active = 0; 1282 /* When a grab is running, the video simply 1283 * won't be switched on any more */ 1284 if (!zr->v4l_memgrab_active) 1285 zr36057_overlay(zr, 0); 1286 zr->overlay_mask = NULL; 1287 } else { 1288 if (!zr->vbuf_base || !fh->overlay_settings.is_set) { 1289 dprintk(1, 1290 KERN_ERR 1291 "%s: %s - buffer or window not set\n", 1292 ZR_DEVNAME(zr), __func__); 1293 return -EINVAL; 1294 } 1295 if (!fh->overlay_settings.format) { 1296 dprintk(1, 1297 KERN_ERR 1298 "%s: %s - no overlay format set\n", 1299 ZR_DEVNAME(zr), __func__); 1300 return -EINVAL; 1301 } 1302 zr->overlay_active = fh->overlay_active = ZORAN_LOCKED; 1303 zr->v4l_overlay_active = 1; 1304 zr->overlay_mask = fh->overlay_mask; 1305 zr->overlay_settings = fh->overlay_settings; 1306 if (!zr->v4l_memgrab_active) 1307 zr36057_overlay(zr, 1); 1308 /* When a grab is running, the video will be 1309 * switched on when grab is finished */ 1310 } 1311 1312 /* Make sure the changes come into effect */ 1313 return wait_grab_pending(zr); 1314 } 1315 1316 /* get the status of a buffer in the clients buffer queue */ 1317 static int zoran_v4l2_buffer_status(struct zoran_fh *fh, 1318 struct v4l2_buffer *buf, int num) 1319 { 1320 struct zoran *zr = fh->zr; 1321 unsigned long flags; 1322 1323 buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1324 1325 switch (fh->map_mode) { 1326 case ZORAN_MAP_MODE_RAW: 1327 /* check range */ 1328 if (num < 0 || num >= fh->buffers.num_buffers || 1329 !fh->buffers.allocated) { 1330 dprintk(1, 1331 KERN_ERR 1332 "%s: %s - wrong number or buffers not allocated\n", 1333 ZR_DEVNAME(zr), __func__); 1334 return -EINVAL; 1335 } 1336 1337 spin_lock_irqsave(&zr->spinlock, flags); 1338 dprintk(3, 1339 KERN_DEBUG 1340 "%s: %s() - raw active=%c, buffer %d: state=%c, map=%c\n", 1341 ZR_DEVNAME(zr), __func__, 1342 "FAL"[fh->buffers.active], num, 1343 "UPMD"[zr->v4l_buffers.buffer[num].state], 1344 fh->buffers.buffer[num].map ? 'Y' : 'N'); 1345 spin_unlock_irqrestore(&zr->spinlock, flags); 1346 1347 buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1348 buf->length = fh->buffers.buffer_size; 1349 1350 /* get buffer */ 1351 buf->bytesused = fh->buffers.buffer[num].bs.length; 1352 if (fh->buffers.buffer[num].state == BUZ_STATE_DONE || 1353 fh->buffers.buffer[num].state == BUZ_STATE_USER) { 1354 buf->sequence = fh->buffers.buffer[num].bs.seq; 1355 buf->flags |= V4L2_BUF_FLAG_DONE; 1356 buf->timestamp = fh->buffers.buffer[num].bs.timestamp; 1357 } else { 1358 buf->flags |= V4L2_BUF_FLAG_QUEUED; 1359 } 1360 1361 if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2) 1362 buf->field = V4L2_FIELD_TOP; 1363 else 1364 buf->field = V4L2_FIELD_INTERLACED; 1365 1366 break; 1367 1368 case ZORAN_MAP_MODE_JPG_REC: 1369 case ZORAN_MAP_MODE_JPG_PLAY: 1370 1371 /* check range */ 1372 if (num < 0 || num >= fh->buffers.num_buffers || 1373 !fh->buffers.allocated) { 1374 dprintk(1, 1375 KERN_ERR 1376 "%s: %s - wrong number or buffers not allocated\n", 1377 ZR_DEVNAME(zr), __func__); 1378 return -EINVAL; 1379 } 1380 1381 buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ? 1382 V4L2_BUF_TYPE_VIDEO_CAPTURE : 1383 V4L2_BUF_TYPE_VIDEO_OUTPUT; 1384 buf->length = fh->buffers.buffer_size; 1385 1386 /* these variables are only written after frame has been captured */ 1387 if (fh->buffers.buffer[num].state == BUZ_STATE_DONE || 1388 fh->buffers.buffer[num].state == BUZ_STATE_USER) { 1389 buf->sequence = fh->buffers.buffer[num].bs.seq; 1390 buf->timestamp = fh->buffers.buffer[num].bs.timestamp; 1391 buf->bytesused = fh->buffers.buffer[num].bs.length; 1392 buf->flags |= V4L2_BUF_FLAG_DONE; 1393 } else { 1394 buf->flags |= V4L2_BUF_FLAG_QUEUED; 1395 } 1396 1397 /* which fields are these? */ 1398 if (fh->jpg_settings.TmpDcm != 1) 1399 buf->field = fh->jpg_settings.odd_even ? 1400 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM; 1401 else 1402 buf->field = fh->jpg_settings.odd_even ? 1403 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT; 1404 1405 break; 1406 1407 default: 1408 1409 dprintk(5, 1410 KERN_ERR 1411 "%s: %s - invalid buffer type|map_mode (%d|%d)\n", 1412 ZR_DEVNAME(zr), __func__, buf->type, fh->map_mode); 1413 return -EINVAL; 1414 } 1415 1416 buf->memory = V4L2_MEMORY_MMAP; 1417 buf->index = num; 1418 buf->m.offset = buf->length * num; 1419 1420 return 0; 1421 } 1422 1423 static int 1424 zoran_set_norm (struct zoran *zr, 1425 v4l2_std_id norm) 1426 { 1427 int on; 1428 1429 if (zr->v4l_buffers.active != ZORAN_FREE || 1430 zr->jpg_buffers.active != ZORAN_FREE) { 1431 dprintk(1, 1432 KERN_WARNING 1433 "%s: %s called while in playback/capture mode\n", 1434 ZR_DEVNAME(zr), __func__); 1435 return -EBUSY; 1436 } 1437 1438 if (!(norm & zr->card.norms)) { 1439 dprintk(1, 1440 KERN_ERR "%s: %s - unsupported norm %llx\n", 1441 ZR_DEVNAME(zr), __func__, norm); 1442 return -EINVAL; 1443 } 1444 1445 if (norm & V4L2_STD_SECAM) 1446 zr->timing = zr->card.tvn[2]; 1447 else if (norm & V4L2_STD_NTSC) 1448 zr->timing = zr->card.tvn[1]; 1449 else 1450 zr->timing = zr->card.tvn[0]; 1451 1452 /* We switch overlay off and on since a change in the 1453 * norm needs different VFE settings */ 1454 on = zr->overlay_active && !zr->v4l_memgrab_active; 1455 if (on) 1456 zr36057_overlay(zr, 0); 1457 1458 decoder_call(zr, video, s_std, norm); 1459 encoder_call(zr, video, s_std_output, norm); 1460 1461 if (on) 1462 zr36057_overlay(zr, 1); 1463 1464 /* Make sure the changes come into effect */ 1465 zr->norm = norm; 1466 1467 return 0; 1468 } 1469 1470 static int 1471 zoran_set_input (struct zoran *zr, 1472 int input) 1473 { 1474 if (input == zr->input) { 1475 return 0; 1476 } 1477 1478 if (zr->v4l_buffers.active != ZORAN_FREE || 1479 zr->jpg_buffers.active != ZORAN_FREE) { 1480 dprintk(1, 1481 KERN_WARNING 1482 "%s: %s called while in playback/capture mode\n", 1483 ZR_DEVNAME(zr), __func__); 1484 return -EBUSY; 1485 } 1486 1487 if (input < 0 || input >= zr->card.inputs) { 1488 dprintk(1, 1489 KERN_ERR 1490 "%s: %s - unsupported input %d\n", 1491 ZR_DEVNAME(zr), __func__, input); 1492 return -EINVAL; 1493 } 1494 1495 zr->input = input; 1496 1497 decoder_call(zr, video, s_routing, 1498 zr->card.input[input].muxsel, 0, 0); 1499 1500 return 0; 1501 } 1502 1503 /* 1504 * ioctl routine 1505 */ 1506 1507 static int zoran_querycap(struct file *file, void *__fh, struct v4l2_capability *cap) 1508 { 1509 struct zoran_fh *fh = __fh; 1510 struct zoran *zr = fh->zr; 1511 1512 strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1); 1513 strncpy(cap->driver, "zoran", sizeof(cap->driver)-1); 1514 snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s", 1515 pci_name(zr->pci_dev)); 1516 cap->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE | 1517 V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_VIDEO_OVERLAY; 1518 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; 1519 return 0; 1520 } 1521 1522 static int zoran_enum_fmt(struct zoran *zr, struct v4l2_fmtdesc *fmt, int flag) 1523 { 1524 unsigned int num, i; 1525 1526 for (num = i = 0; i < NUM_FORMATS; i++) { 1527 if (zoran_formats[i].flags & flag && num++ == fmt->index) { 1528 strncpy(fmt->description, zoran_formats[i].name, 1529 sizeof(fmt->description) - 1); 1530 /* fmt struct pre-zeroed, so adding '\0' not needed */ 1531 fmt->pixelformat = zoran_formats[i].fourcc; 1532 if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED) 1533 fmt->flags |= V4L2_FMT_FLAG_COMPRESSED; 1534 return 0; 1535 } 1536 } 1537 return -EINVAL; 1538 } 1539 1540 static int zoran_enum_fmt_vid_cap(struct file *file, void *__fh, 1541 struct v4l2_fmtdesc *f) 1542 { 1543 struct zoran_fh *fh = __fh; 1544 struct zoran *zr = fh->zr; 1545 1546 return zoran_enum_fmt(zr, f, ZORAN_FORMAT_CAPTURE); 1547 } 1548 1549 static int zoran_enum_fmt_vid_out(struct file *file, void *__fh, 1550 struct v4l2_fmtdesc *f) 1551 { 1552 struct zoran_fh *fh = __fh; 1553 struct zoran *zr = fh->zr; 1554 1555 return zoran_enum_fmt(zr, f, ZORAN_FORMAT_PLAYBACK); 1556 } 1557 1558 static int zoran_enum_fmt_vid_overlay(struct file *file, void *__fh, 1559 struct v4l2_fmtdesc *f) 1560 { 1561 struct zoran_fh *fh = __fh; 1562 struct zoran *zr = fh->zr; 1563 1564 return zoran_enum_fmt(zr, f, ZORAN_FORMAT_OVERLAY); 1565 } 1566 1567 static int zoran_g_fmt_vid_out(struct file *file, void *__fh, 1568 struct v4l2_format *fmt) 1569 { 1570 struct zoran_fh *fh = __fh; 1571 1572 fmt->fmt.pix.width = fh->jpg_settings.img_width / fh->jpg_settings.HorDcm; 1573 fmt->fmt.pix.height = fh->jpg_settings.img_height * 2 / 1574 (fh->jpg_settings.VerDcm * fh->jpg_settings.TmpDcm); 1575 fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&fh->jpg_settings); 1576 fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG; 1577 if (fh->jpg_settings.TmpDcm == 1) 1578 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ? 1579 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT); 1580 else 1581 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ? 1582 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM); 1583 fmt->fmt.pix.bytesperline = 0; 1584 fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1585 1586 return 0; 1587 } 1588 1589 static int zoran_g_fmt_vid_cap(struct file *file, void *__fh, 1590 struct v4l2_format *fmt) 1591 { 1592 struct zoran_fh *fh = __fh; 1593 struct zoran *zr = fh->zr; 1594 1595 if (fh->map_mode != ZORAN_MAP_MODE_RAW) 1596 return zoran_g_fmt_vid_out(file, fh, fmt); 1597 1598 fmt->fmt.pix.width = fh->v4l_settings.width; 1599 fmt->fmt.pix.height = fh->v4l_settings.height; 1600 fmt->fmt.pix.sizeimage = fh->v4l_settings.bytesperline * 1601 fh->v4l_settings.height; 1602 fmt->fmt.pix.pixelformat = fh->v4l_settings.format->fourcc; 1603 fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace; 1604 fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline; 1605 if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2)) 1606 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED; 1607 else 1608 fmt->fmt.pix.field = V4L2_FIELD_TOP; 1609 return 0; 1610 } 1611 1612 static int zoran_g_fmt_vid_overlay(struct file *file, void *__fh, 1613 struct v4l2_format *fmt) 1614 { 1615 struct zoran_fh *fh = __fh; 1616 struct zoran *zr = fh->zr; 1617 1618 fmt->fmt.win.w.left = fh->overlay_settings.x; 1619 fmt->fmt.win.w.top = fh->overlay_settings.y; 1620 fmt->fmt.win.w.width = fh->overlay_settings.width; 1621 fmt->fmt.win.w.height = fh->overlay_settings.height; 1622 if (fh->overlay_settings.width * 2 > BUZ_MAX_HEIGHT) 1623 fmt->fmt.win.field = V4L2_FIELD_INTERLACED; 1624 else 1625 fmt->fmt.win.field = V4L2_FIELD_TOP; 1626 1627 return 0; 1628 } 1629 1630 static int zoran_try_fmt_vid_overlay(struct file *file, void *__fh, 1631 struct v4l2_format *fmt) 1632 { 1633 struct zoran_fh *fh = __fh; 1634 struct zoran *zr = fh->zr; 1635 1636 if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH) 1637 fmt->fmt.win.w.width = BUZ_MAX_WIDTH; 1638 if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH) 1639 fmt->fmt.win.w.width = BUZ_MIN_WIDTH; 1640 if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT) 1641 fmt->fmt.win.w.height = BUZ_MAX_HEIGHT; 1642 if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT) 1643 fmt->fmt.win.w.height = BUZ_MIN_HEIGHT; 1644 1645 return 0; 1646 } 1647 1648 static int zoran_try_fmt_vid_out(struct file *file, void *__fh, 1649 struct v4l2_format *fmt) 1650 { 1651 struct zoran_fh *fh = __fh; 1652 struct zoran *zr = fh->zr; 1653 struct zoran_jpg_settings settings; 1654 int res = 0; 1655 1656 if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG) 1657 return -EINVAL; 1658 1659 settings = fh->jpg_settings; 1660 1661 /* we actually need to set 'real' parameters now */ 1662 if ((fmt->fmt.pix.height * 2) > BUZ_MAX_HEIGHT) 1663 settings.TmpDcm = 1; 1664 else 1665 settings.TmpDcm = 2; 1666 settings.decimation = 0; 1667 if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2) 1668 settings.VerDcm = 2; 1669 else 1670 settings.VerDcm = 1; 1671 if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4) 1672 settings.HorDcm = 4; 1673 else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2) 1674 settings.HorDcm = 2; 1675 else 1676 settings.HorDcm = 1; 1677 if (settings.TmpDcm == 1) 1678 settings.field_per_buff = 2; 1679 else 1680 settings.field_per_buff = 1; 1681 1682 if (settings.HorDcm > 1) { 1683 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0; 1684 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH; 1685 } else { 1686 settings.img_x = 0; 1687 settings.img_width = BUZ_MAX_WIDTH; 1688 } 1689 1690 /* check */ 1691 res = zoran_check_jpg_settings(zr, &settings, 1); 1692 if (res) 1693 return res; 1694 1695 /* tell the user what we actually did */ 1696 fmt->fmt.pix.width = settings.img_width / settings.HorDcm; 1697 fmt->fmt.pix.height = settings.img_height * 2 / 1698 (settings.TmpDcm * settings.VerDcm); 1699 if (settings.TmpDcm == 1) 1700 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ? 1701 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT); 1702 else 1703 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ? 1704 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM); 1705 1706 fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&settings); 1707 fmt->fmt.pix.bytesperline = 0; 1708 fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1709 return res; 1710 } 1711 1712 static int zoran_try_fmt_vid_cap(struct file *file, void *__fh, 1713 struct v4l2_format *fmt) 1714 { 1715 struct zoran_fh *fh = __fh; 1716 struct zoran *zr = fh->zr; 1717 int bpp; 1718 int i; 1719 1720 if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) 1721 return zoran_try_fmt_vid_out(file, fh, fmt); 1722 1723 for (i = 0; i < NUM_FORMATS; i++) 1724 if (zoran_formats[i].fourcc == fmt->fmt.pix.pixelformat) 1725 break; 1726 1727 if (i == NUM_FORMATS) 1728 return -EINVAL; 1729 1730 bpp = DIV_ROUND_UP(zoran_formats[i].depth, 8); 1731 v4l_bound_align_image( 1732 &fmt->fmt.pix.width, BUZ_MIN_WIDTH, BUZ_MAX_WIDTH, bpp == 2 ? 1 : 2, 1733 &fmt->fmt.pix.height, BUZ_MIN_HEIGHT, BUZ_MAX_HEIGHT, 0, 0); 1734 return 0; 1735 } 1736 1737 static int zoran_s_fmt_vid_overlay(struct file *file, void *__fh, 1738 struct v4l2_format *fmt) 1739 { 1740 struct zoran_fh *fh = __fh; 1741 int res; 1742 1743 dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n", 1744 fmt->fmt.win.w.left, fmt->fmt.win.w.top, 1745 fmt->fmt.win.w.width, 1746 fmt->fmt.win.w.height, 1747 fmt->fmt.win.clipcount, 1748 fmt->fmt.win.bitmap); 1749 res = setup_window(fh, fmt->fmt.win.w.left, fmt->fmt.win.w.top, 1750 fmt->fmt.win.w.width, fmt->fmt.win.w.height, 1751 (struct v4l2_clip __user *)fmt->fmt.win.clips, 1752 fmt->fmt.win.clipcount, fmt->fmt.win.bitmap); 1753 return res; 1754 } 1755 1756 static int zoran_s_fmt_vid_out(struct file *file, void *__fh, 1757 struct v4l2_format *fmt) 1758 { 1759 struct zoran_fh *fh = __fh; 1760 struct zoran *zr = fh->zr; 1761 __le32 printformat = __cpu_to_le32(fmt->fmt.pix.pixelformat); 1762 struct zoran_jpg_settings settings; 1763 int res = 0; 1764 1765 dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n", 1766 fmt->fmt.pix.width, fmt->fmt.pix.height, 1767 fmt->fmt.pix.pixelformat, 1768 (char *) &printformat); 1769 if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG) 1770 return -EINVAL; 1771 1772 if (fh->buffers.allocated) { 1773 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n", 1774 ZR_DEVNAME(zr)); 1775 res = -EBUSY; 1776 return res; 1777 } 1778 1779 settings = fh->jpg_settings; 1780 1781 /* we actually need to set 'real' parameters now */ 1782 if (fmt->fmt.pix.height * 2 > BUZ_MAX_HEIGHT) 1783 settings.TmpDcm = 1; 1784 else 1785 settings.TmpDcm = 2; 1786 settings.decimation = 0; 1787 if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2) 1788 settings.VerDcm = 2; 1789 else 1790 settings.VerDcm = 1; 1791 if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4) 1792 settings.HorDcm = 4; 1793 else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2) 1794 settings.HorDcm = 2; 1795 else 1796 settings.HorDcm = 1; 1797 if (settings.TmpDcm == 1) 1798 settings.field_per_buff = 2; 1799 else 1800 settings.field_per_buff = 1; 1801 1802 if (settings.HorDcm > 1) { 1803 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0; 1804 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH; 1805 } else { 1806 settings.img_x = 0; 1807 settings.img_width = BUZ_MAX_WIDTH; 1808 } 1809 1810 /* check */ 1811 res = zoran_check_jpg_settings(zr, &settings, 0); 1812 if (res) 1813 return res; 1814 1815 /* it's ok, so set them */ 1816 fh->jpg_settings = settings; 1817 1818 map_mode_jpg(fh, fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT); 1819 fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings); 1820 1821 /* tell the user what we actually did */ 1822 fmt->fmt.pix.width = settings.img_width / settings.HorDcm; 1823 fmt->fmt.pix.height = settings.img_height * 2 / 1824 (settings.TmpDcm * settings.VerDcm); 1825 if (settings.TmpDcm == 1) 1826 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ? 1827 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT); 1828 else 1829 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ? 1830 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM); 1831 fmt->fmt.pix.bytesperline = 0; 1832 fmt->fmt.pix.sizeimage = fh->buffers.buffer_size; 1833 fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1834 return res; 1835 } 1836 1837 static int zoran_s_fmt_vid_cap(struct file *file, void *__fh, 1838 struct v4l2_format *fmt) 1839 { 1840 struct zoran_fh *fh = __fh; 1841 struct zoran *zr = fh->zr; 1842 int i; 1843 int res = 0; 1844 1845 if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) 1846 return zoran_s_fmt_vid_out(file, fh, fmt); 1847 1848 for (i = 0; i < NUM_FORMATS; i++) 1849 if (fmt->fmt.pix.pixelformat == zoran_formats[i].fourcc) 1850 break; 1851 if (i == NUM_FORMATS) { 1852 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x\n", 1853 ZR_DEVNAME(zr), fmt->fmt.pix.pixelformat); 1854 return -EINVAL; 1855 } 1856 1857 if ((fh->map_mode != ZORAN_MAP_MODE_RAW && fh->buffers.allocated) || 1858 fh->buffers.active != ZORAN_FREE) { 1859 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n", 1860 ZR_DEVNAME(zr)); 1861 res = -EBUSY; 1862 return res; 1863 } 1864 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT) 1865 fmt->fmt.pix.height = BUZ_MAX_HEIGHT; 1866 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH) 1867 fmt->fmt.pix.width = BUZ_MAX_WIDTH; 1868 1869 map_mode_raw(fh); 1870 1871 res = zoran_v4l_set_format(fh, fmt->fmt.pix.width, fmt->fmt.pix.height, 1872 &zoran_formats[i]); 1873 if (res) 1874 return res; 1875 1876 /* tell the user the results/missing stuff */ 1877 fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline; 1878 fmt->fmt.pix.sizeimage = fh->v4l_settings.height * fh->v4l_settings.bytesperline; 1879 fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace; 1880 if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2)) 1881 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED; 1882 else 1883 fmt->fmt.pix.field = V4L2_FIELD_TOP; 1884 return res; 1885 } 1886 1887 static int zoran_g_fbuf(struct file *file, void *__fh, 1888 struct v4l2_framebuffer *fb) 1889 { 1890 struct zoran_fh *fh = __fh; 1891 struct zoran *zr = fh->zr; 1892 1893 memset(fb, 0, sizeof(*fb)); 1894 fb->base = zr->vbuf_base; 1895 fb->fmt.width = zr->vbuf_width; 1896 fb->fmt.height = zr->vbuf_height; 1897 if (zr->overlay_settings.format) 1898 fb->fmt.pixelformat = fh->overlay_settings.format->fourcc; 1899 fb->fmt.bytesperline = zr->vbuf_bytesperline; 1900 fb->fmt.colorspace = V4L2_COLORSPACE_SRGB; 1901 fb->fmt.field = V4L2_FIELD_INTERLACED; 1902 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING; 1903 1904 return 0; 1905 } 1906 1907 static int zoran_s_fbuf(struct file *file, void *__fh, 1908 const struct v4l2_framebuffer *fb) 1909 { 1910 struct zoran_fh *fh = __fh; 1911 struct zoran *zr = fh->zr; 1912 int i, res = 0; 1913 __le32 printformat = __cpu_to_le32(fb->fmt.pixelformat); 1914 1915 for (i = 0; i < NUM_FORMATS; i++) 1916 if (zoran_formats[i].fourcc == fb->fmt.pixelformat) 1917 break; 1918 if (i == NUM_FORMATS) { 1919 dprintk(1, KERN_ERR "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n", 1920 ZR_DEVNAME(zr), fb->fmt.pixelformat, 1921 (char *)&printformat); 1922 return -EINVAL; 1923 } 1924 1925 res = setup_fbuffer(fh, fb->base, &zoran_formats[i], fb->fmt.width, 1926 fb->fmt.height, fb->fmt.bytesperline); 1927 1928 return res; 1929 } 1930 1931 static int zoran_overlay(struct file *file, void *__fh, unsigned int on) 1932 { 1933 struct zoran_fh *fh = __fh; 1934 int res; 1935 1936 res = setup_overlay(fh, on); 1937 1938 return res; 1939 } 1940 1941 static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type); 1942 1943 static int zoran_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *req) 1944 { 1945 struct zoran_fh *fh = __fh; 1946 struct zoran *zr = fh->zr; 1947 int res = 0; 1948 1949 if (req->memory != V4L2_MEMORY_MMAP) { 1950 dprintk(2, 1951 KERN_ERR 1952 "%s: only MEMORY_MMAP capture is supported, not %d\n", 1953 ZR_DEVNAME(zr), req->memory); 1954 return -EINVAL; 1955 } 1956 1957 if (req->count == 0) 1958 return zoran_streamoff(file, fh, req->type); 1959 1960 if (fh->buffers.allocated) { 1961 dprintk(2, 1962 KERN_ERR 1963 "%s: VIDIOC_REQBUFS - buffers already allocated\n", 1964 ZR_DEVNAME(zr)); 1965 res = -EBUSY; 1966 return res; 1967 } 1968 1969 if (fh->map_mode == ZORAN_MAP_MODE_RAW && 1970 req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 1971 /* control user input */ 1972 if (req->count < 2) 1973 req->count = 2; 1974 if (req->count > v4l_nbufs) 1975 req->count = v4l_nbufs; 1976 1977 /* The next mmap will map the V4L buffers */ 1978 map_mode_raw(fh); 1979 fh->buffers.num_buffers = req->count; 1980 1981 if (v4l_fbuffer_alloc(fh)) { 1982 res = -ENOMEM; 1983 return res; 1984 } 1985 } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC || 1986 fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) { 1987 /* we need to calculate size ourselves now */ 1988 if (req->count < 4) 1989 req->count = 4; 1990 if (req->count > jpg_nbufs) 1991 req->count = jpg_nbufs; 1992 1993 /* The next mmap will map the MJPEG buffers */ 1994 map_mode_jpg(fh, req->type == V4L2_BUF_TYPE_VIDEO_OUTPUT); 1995 fh->buffers.num_buffers = req->count; 1996 fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings); 1997 1998 if (jpg_fbuffer_alloc(fh)) { 1999 res = -ENOMEM; 2000 return res; 2001 } 2002 } else { 2003 dprintk(1, 2004 KERN_ERR 2005 "%s: VIDIOC_REQBUFS - unknown type %d\n", 2006 ZR_DEVNAME(zr), req->type); 2007 res = -EINVAL; 2008 return res; 2009 } 2010 return res; 2011 } 2012 2013 static int zoran_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf) 2014 { 2015 struct zoran_fh *fh = __fh; 2016 int res; 2017 2018 res = zoran_v4l2_buffer_status(fh, buf, buf->index); 2019 2020 return res; 2021 } 2022 2023 static int zoran_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf) 2024 { 2025 struct zoran_fh *fh = __fh; 2026 struct zoran *zr = fh->zr; 2027 int res = 0, codec_mode, buf_type; 2028 2029 switch (fh->map_mode) { 2030 case ZORAN_MAP_MODE_RAW: 2031 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { 2032 dprintk(1, KERN_ERR 2033 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", 2034 ZR_DEVNAME(zr), buf->type, fh->map_mode); 2035 res = -EINVAL; 2036 return res; 2037 } 2038 2039 res = zoran_v4l_queue_frame(fh, buf->index); 2040 if (res) 2041 return res; 2042 if (!zr->v4l_memgrab_active && fh->buffers.active == ZORAN_LOCKED) 2043 zr36057_set_memgrab(zr, 1); 2044 break; 2045 2046 case ZORAN_MAP_MODE_JPG_REC: 2047 case ZORAN_MAP_MODE_JPG_PLAY: 2048 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) { 2049 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT; 2050 codec_mode = BUZ_MODE_MOTION_DECOMPRESS; 2051 } else { 2052 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 2053 codec_mode = BUZ_MODE_MOTION_COMPRESS; 2054 } 2055 2056 if (buf->type != buf_type) { 2057 dprintk(1, KERN_ERR 2058 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", 2059 ZR_DEVNAME(zr), buf->type, fh->map_mode); 2060 res = -EINVAL; 2061 return res; 2062 } 2063 2064 res = zoran_jpg_queue_frame(fh, buf->index, codec_mode); 2065 if (res != 0) 2066 return res; 2067 if (zr->codec_mode == BUZ_MODE_IDLE && 2068 fh->buffers.active == ZORAN_LOCKED) 2069 zr36057_enable_jpg(zr, codec_mode); 2070 2071 break; 2072 2073 default: 2074 dprintk(1, KERN_ERR 2075 "%s: VIDIOC_QBUF - unsupported type %d\n", 2076 ZR_DEVNAME(zr), buf->type); 2077 res = -EINVAL; 2078 break; 2079 } 2080 return res; 2081 } 2082 2083 static int zoran_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf) 2084 { 2085 struct zoran_fh *fh = __fh; 2086 struct zoran *zr = fh->zr; 2087 int res = 0, buf_type, num = -1; /* compiler borks here (?) */ 2088 2089 switch (fh->map_mode) { 2090 case ZORAN_MAP_MODE_RAW: 2091 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { 2092 dprintk(1, KERN_ERR 2093 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", 2094 ZR_DEVNAME(zr), buf->type, fh->map_mode); 2095 res = -EINVAL; 2096 return res; 2097 } 2098 2099 num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME]; 2100 if (file->f_flags & O_NONBLOCK && 2101 zr->v4l_buffers.buffer[num].state != BUZ_STATE_DONE) { 2102 res = -EAGAIN; 2103 return res; 2104 } 2105 res = v4l_sync(fh, num); 2106 if (res) 2107 return res; 2108 zr->v4l_sync_tail++; 2109 res = zoran_v4l2_buffer_status(fh, buf, num); 2110 break; 2111 2112 case ZORAN_MAP_MODE_JPG_REC: 2113 case ZORAN_MAP_MODE_JPG_PLAY: 2114 { 2115 struct zoran_sync bs; 2116 2117 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) 2118 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT; 2119 else 2120 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 2121 2122 if (buf->type != buf_type) { 2123 dprintk(1, KERN_ERR 2124 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n", 2125 ZR_DEVNAME(zr), buf->type, fh->map_mode); 2126 res = -EINVAL; 2127 return res; 2128 } 2129 2130 num = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME]; 2131 2132 if (file->f_flags & O_NONBLOCK && 2133 zr->jpg_buffers.buffer[num].state != BUZ_STATE_DONE) { 2134 res = -EAGAIN; 2135 return res; 2136 } 2137 bs.frame = 0; /* suppress compiler warning */ 2138 res = jpg_sync(fh, &bs); 2139 if (res) 2140 return res; 2141 res = zoran_v4l2_buffer_status(fh, buf, bs.frame); 2142 break; 2143 } 2144 2145 default: 2146 dprintk(1, KERN_ERR 2147 "%s: VIDIOC_DQBUF - unsupported type %d\n", 2148 ZR_DEVNAME(zr), buf->type); 2149 res = -EINVAL; 2150 break; 2151 } 2152 return res; 2153 } 2154 2155 static int zoran_streamon(struct file *file, void *__fh, enum v4l2_buf_type type) 2156 { 2157 struct zoran_fh *fh = __fh; 2158 struct zoran *zr = fh->zr; 2159 int res = 0; 2160 2161 switch (fh->map_mode) { 2162 case ZORAN_MAP_MODE_RAW: /* raw capture */ 2163 if (zr->v4l_buffers.active != ZORAN_ACTIVE || 2164 fh->buffers.active != ZORAN_ACTIVE) { 2165 res = -EBUSY; 2166 return res; 2167 } 2168 2169 zr->v4l_buffers.active = fh->buffers.active = ZORAN_LOCKED; 2170 zr->v4l_settings = fh->v4l_settings; 2171 2172 zr->v4l_sync_tail = zr->v4l_pend_tail; 2173 if (!zr->v4l_memgrab_active && 2174 zr->v4l_pend_head != zr->v4l_pend_tail) { 2175 zr36057_set_memgrab(zr, 1); 2176 } 2177 break; 2178 2179 case ZORAN_MAP_MODE_JPG_REC: 2180 case ZORAN_MAP_MODE_JPG_PLAY: 2181 /* what is the codec mode right now? */ 2182 if (zr->jpg_buffers.active != ZORAN_ACTIVE || 2183 fh->buffers.active != ZORAN_ACTIVE) { 2184 res = -EBUSY; 2185 return res; 2186 } 2187 2188 zr->jpg_buffers.active = fh->buffers.active = ZORAN_LOCKED; 2189 2190 if (zr->jpg_que_head != zr->jpg_que_tail) { 2191 /* Start the jpeg codec when the first frame is queued */ 2192 jpeg_start(zr); 2193 } 2194 break; 2195 2196 default: 2197 dprintk(1, 2198 KERN_ERR 2199 "%s: VIDIOC_STREAMON - invalid map mode %d\n", 2200 ZR_DEVNAME(zr), fh->map_mode); 2201 res = -EINVAL; 2202 break; 2203 } 2204 return res; 2205 } 2206 2207 static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type) 2208 { 2209 struct zoran_fh *fh = __fh; 2210 struct zoran *zr = fh->zr; 2211 int i, res = 0; 2212 unsigned long flags; 2213 2214 switch (fh->map_mode) { 2215 case ZORAN_MAP_MODE_RAW: /* raw capture */ 2216 if (fh->buffers.active == ZORAN_FREE && 2217 zr->v4l_buffers.active != ZORAN_FREE) { 2218 res = -EPERM; /* stay off other's settings! */ 2219 return res; 2220 } 2221 if (zr->v4l_buffers.active == ZORAN_FREE) 2222 return res; 2223 2224 spin_lock_irqsave(&zr->spinlock, flags); 2225 /* unload capture */ 2226 if (zr->v4l_memgrab_active) { 2227 2228 zr36057_set_memgrab(zr, 0); 2229 } 2230 2231 for (i = 0; i < fh->buffers.num_buffers; i++) 2232 zr->v4l_buffers.buffer[i].state = BUZ_STATE_USER; 2233 fh->buffers = zr->v4l_buffers; 2234 2235 zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE; 2236 2237 zr->v4l_grab_seq = 0; 2238 zr->v4l_pend_head = zr->v4l_pend_tail = 0; 2239 zr->v4l_sync_tail = 0; 2240 2241 spin_unlock_irqrestore(&zr->spinlock, flags); 2242 2243 break; 2244 2245 case ZORAN_MAP_MODE_JPG_REC: 2246 case ZORAN_MAP_MODE_JPG_PLAY: 2247 if (fh->buffers.active == ZORAN_FREE && 2248 zr->jpg_buffers.active != ZORAN_FREE) { 2249 res = -EPERM; /* stay off other's settings! */ 2250 return res; 2251 } 2252 if (zr->jpg_buffers.active == ZORAN_FREE) 2253 return res; 2254 2255 res = jpg_qbuf(fh, -1, 2256 (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ? 2257 BUZ_MODE_MOTION_COMPRESS : 2258 BUZ_MODE_MOTION_DECOMPRESS); 2259 if (res) 2260 return res; 2261 break; 2262 default: 2263 dprintk(1, KERN_ERR 2264 "%s: VIDIOC_STREAMOFF - invalid map mode %d\n", 2265 ZR_DEVNAME(zr), fh->map_mode); 2266 res = -EINVAL; 2267 break; 2268 } 2269 return res; 2270 } 2271 static int zoran_g_std(struct file *file, void *__fh, v4l2_std_id *std) 2272 { 2273 struct zoran_fh *fh = __fh; 2274 struct zoran *zr = fh->zr; 2275 2276 *std = zr->norm; 2277 return 0; 2278 } 2279 2280 static int zoran_s_std(struct file *file, void *__fh, v4l2_std_id std) 2281 { 2282 struct zoran_fh *fh = __fh; 2283 struct zoran *zr = fh->zr; 2284 int res = 0; 2285 2286 res = zoran_set_norm(zr, std); 2287 if (res) 2288 return res; 2289 2290 res = wait_grab_pending(zr); 2291 return res; 2292 } 2293 2294 static int zoran_enum_input(struct file *file, void *__fh, 2295 struct v4l2_input *inp) 2296 { 2297 struct zoran_fh *fh = __fh; 2298 struct zoran *zr = fh->zr; 2299 2300 if (inp->index >= zr->card.inputs) 2301 return -EINVAL; 2302 2303 strncpy(inp->name, zr->card.input[inp->index].name, 2304 sizeof(inp->name) - 1); 2305 inp->type = V4L2_INPUT_TYPE_CAMERA; 2306 inp->std = V4L2_STD_ALL; 2307 2308 /* Get status of video decoder */ 2309 decoder_call(zr, video, g_input_status, &inp->status); 2310 return 0; 2311 } 2312 2313 static int zoran_g_input(struct file *file, void *__fh, unsigned int *input) 2314 { 2315 struct zoran_fh *fh = __fh; 2316 struct zoran *zr = fh->zr; 2317 2318 *input = zr->input; 2319 2320 return 0; 2321 } 2322 2323 static int zoran_s_input(struct file *file, void *__fh, unsigned int input) 2324 { 2325 struct zoran_fh *fh = __fh; 2326 struct zoran *zr = fh->zr; 2327 int res; 2328 2329 res = zoran_set_input(zr, input); 2330 if (res) 2331 return res; 2332 2333 /* Make sure the changes come into effect */ 2334 res = wait_grab_pending(zr); 2335 return res; 2336 } 2337 2338 static int zoran_enum_output(struct file *file, void *__fh, 2339 struct v4l2_output *outp) 2340 { 2341 if (outp->index != 0) 2342 return -EINVAL; 2343 2344 outp->index = 0; 2345 outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY; 2346 strncpy(outp->name, "Autodetect", sizeof(outp->name)-1); 2347 2348 return 0; 2349 } 2350 2351 static int zoran_g_output(struct file *file, void *__fh, unsigned int *output) 2352 { 2353 *output = 0; 2354 2355 return 0; 2356 } 2357 2358 static int zoran_s_output(struct file *file, void *__fh, unsigned int output) 2359 { 2360 if (output != 0) 2361 return -EINVAL; 2362 2363 return 0; 2364 } 2365 2366 /* cropping (sub-frame capture) */ 2367 static int zoran_g_selection(struct file *file, void *__fh, struct v4l2_selection *sel) 2368 { 2369 struct zoran_fh *fh = __fh; 2370 struct zoran *zr = fh->zr; 2371 2372 if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && 2373 sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 2374 return -EINVAL; 2375 2376 if (fh->map_mode == ZORAN_MAP_MODE_RAW) { 2377 dprintk(1, KERN_ERR 2378 "%s: VIDIOC_G_SELECTION - subcapture only supported for compressed capture\n", 2379 ZR_DEVNAME(zr)); 2380 return -EINVAL; 2381 } 2382 2383 switch (sel->target) { 2384 case V4L2_SEL_TGT_CROP: 2385 sel->r.top = fh->jpg_settings.img_y; 2386 sel->r.left = fh->jpg_settings.img_x; 2387 sel->r.width = fh->jpg_settings.img_width; 2388 sel->r.height = fh->jpg_settings.img_height; 2389 break; 2390 case V4L2_SEL_TGT_CROP_DEFAULT: 2391 sel->r.top = sel->r.left = 0; 2392 sel->r.width = BUZ_MIN_WIDTH; 2393 sel->r.height = BUZ_MIN_HEIGHT; 2394 break; 2395 case V4L2_SEL_TGT_CROP_BOUNDS: 2396 sel->r.top = sel->r.left = 0; 2397 sel->r.width = BUZ_MAX_WIDTH; 2398 sel->r.height = BUZ_MAX_HEIGHT; 2399 break; 2400 default: 2401 return -EINVAL; 2402 } 2403 return 0; 2404 } 2405 2406 static int zoran_s_selection(struct file *file, void *__fh, struct v4l2_selection *sel) 2407 { 2408 struct zoran_fh *fh = __fh; 2409 struct zoran *zr = fh->zr; 2410 struct zoran_jpg_settings settings; 2411 int res; 2412 2413 if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && 2414 sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 2415 return -EINVAL; 2416 2417 if (sel->target != V4L2_SEL_TGT_CROP) 2418 return -EINVAL; 2419 2420 if (fh->map_mode == ZORAN_MAP_MODE_RAW) { 2421 dprintk(1, KERN_ERR 2422 "%s: VIDIOC_S_SELECTION - subcapture only supported for compressed capture\n", 2423 ZR_DEVNAME(zr)); 2424 return -EINVAL; 2425 } 2426 2427 settings = fh->jpg_settings; 2428 2429 if (fh->buffers.allocated) { 2430 dprintk(1, KERN_ERR 2431 "%s: VIDIOC_S_SELECTION - cannot change settings while active\n", 2432 ZR_DEVNAME(zr)); 2433 return -EBUSY; 2434 } 2435 2436 /* move into a form that we understand */ 2437 settings.img_x = sel->r.left; 2438 settings.img_y = sel->r.top; 2439 settings.img_width = sel->r.width; 2440 settings.img_height = sel->r.height; 2441 2442 /* check validity */ 2443 res = zoran_check_jpg_settings(zr, &settings, 0); 2444 if (res) 2445 return res; 2446 2447 /* accept */ 2448 fh->jpg_settings = settings; 2449 return res; 2450 } 2451 2452 static int zoran_g_jpegcomp(struct file *file, void *__fh, 2453 struct v4l2_jpegcompression *params) 2454 { 2455 struct zoran_fh *fh = __fh; 2456 memset(params, 0, sizeof(*params)); 2457 2458 params->quality = fh->jpg_settings.jpg_comp.quality; 2459 params->APPn = fh->jpg_settings.jpg_comp.APPn; 2460 memcpy(params->APP_data, 2461 fh->jpg_settings.jpg_comp.APP_data, 2462 fh->jpg_settings.jpg_comp.APP_len); 2463 params->APP_len = fh->jpg_settings.jpg_comp.APP_len; 2464 memcpy(params->COM_data, 2465 fh->jpg_settings.jpg_comp.COM_data, 2466 fh->jpg_settings.jpg_comp.COM_len); 2467 params->COM_len = fh->jpg_settings.jpg_comp.COM_len; 2468 params->jpeg_markers = 2469 fh->jpg_settings.jpg_comp.jpeg_markers; 2470 2471 return 0; 2472 } 2473 2474 static int zoran_s_jpegcomp(struct file *file, void *__fh, 2475 const struct v4l2_jpegcompression *params) 2476 { 2477 struct zoran_fh *fh = __fh; 2478 struct zoran *zr = fh->zr; 2479 int res = 0; 2480 struct zoran_jpg_settings settings; 2481 2482 settings = fh->jpg_settings; 2483 2484 settings.jpg_comp = *params; 2485 2486 if (fh->buffers.active != ZORAN_FREE) { 2487 dprintk(1, KERN_WARNING 2488 "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n", 2489 ZR_DEVNAME(zr)); 2490 res = -EBUSY; 2491 return res; 2492 } 2493 2494 res = zoran_check_jpg_settings(zr, &settings, 0); 2495 if (res) 2496 return res; 2497 if (!fh->buffers.allocated) 2498 fh->buffers.buffer_size = 2499 zoran_v4l2_calc_bufsize(&fh->jpg_settings); 2500 fh->jpg_settings.jpg_comp = settings.jpg_comp; 2501 return res; 2502 } 2503 2504 static unsigned int 2505 zoran_poll (struct file *file, 2506 poll_table *wait) 2507 { 2508 struct zoran_fh *fh = file->private_data; 2509 struct zoran *zr = fh->zr; 2510 int res = v4l2_ctrl_poll(file, wait); 2511 int frame; 2512 unsigned long flags; 2513 2514 /* we should check whether buffers are ready to be synced on 2515 * (w/o waits - O_NONBLOCK) here 2516 * if ready for read (sync), return POLLIN|POLLRDNORM, 2517 * if ready for write (sync), return POLLOUT|POLLWRNORM, 2518 * if error, return POLLERR, 2519 * if no buffers queued or so, return POLLNVAL 2520 */ 2521 2522 switch (fh->map_mode) { 2523 case ZORAN_MAP_MODE_RAW: 2524 poll_wait(file, &zr->v4l_capq, wait); 2525 frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME]; 2526 2527 spin_lock_irqsave(&zr->spinlock, flags); 2528 dprintk(3, 2529 KERN_DEBUG 2530 "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n", 2531 ZR_DEVNAME(zr), __func__, 2532 "FAL"[fh->buffers.active], zr->v4l_sync_tail, 2533 "UPMD"[zr->v4l_buffers.buffer[frame].state], 2534 zr->v4l_pend_tail, zr->v4l_pend_head); 2535 /* Process is the one capturing? */ 2536 if (fh->buffers.active != ZORAN_FREE && 2537 /* Buffer ready to DQBUF? */ 2538 zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE) 2539 res |= POLLIN | POLLRDNORM; 2540 spin_unlock_irqrestore(&zr->spinlock, flags); 2541 2542 break; 2543 2544 case ZORAN_MAP_MODE_JPG_REC: 2545 case ZORAN_MAP_MODE_JPG_PLAY: 2546 poll_wait(file, &zr->jpg_capq, wait); 2547 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME]; 2548 2549 spin_lock_irqsave(&zr->spinlock, flags); 2550 dprintk(3, 2551 KERN_DEBUG 2552 "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n", 2553 ZR_DEVNAME(zr), __func__, 2554 "FAL"[fh->buffers.active], zr->jpg_que_tail, 2555 "UPMD"[zr->jpg_buffers.buffer[frame].state], 2556 zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head); 2557 if (fh->buffers.active != ZORAN_FREE && 2558 zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) { 2559 if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) 2560 res |= POLLIN | POLLRDNORM; 2561 else 2562 res |= POLLOUT | POLLWRNORM; 2563 } 2564 spin_unlock_irqrestore(&zr->spinlock, flags); 2565 2566 break; 2567 2568 default: 2569 dprintk(1, 2570 KERN_ERR 2571 "%s: %s - internal error, unknown map_mode=%d\n", 2572 ZR_DEVNAME(zr), __func__, fh->map_mode); 2573 res |= POLLERR; 2574 } 2575 2576 return res; 2577 } 2578 2579 2580 /* 2581 * This maps the buffers to user space. 2582 * 2583 * Depending on the state of fh->map_mode 2584 * the V4L or the MJPEG buffers are mapped 2585 * per buffer or all together 2586 * 2587 * Note that we need to connect to some 2588 * unmap signal event to unmap the de-allocate 2589 * the buffer accordingly (zoran_vm_close()) 2590 */ 2591 2592 static void 2593 zoran_vm_open (struct vm_area_struct *vma) 2594 { 2595 struct zoran_mapping *map = vma->vm_private_data; 2596 atomic_inc(&map->count); 2597 } 2598 2599 static void 2600 zoran_vm_close (struct vm_area_struct *vma) 2601 { 2602 struct zoran_mapping *map = vma->vm_private_data; 2603 struct zoran_fh *fh = map->fh; 2604 struct zoran *zr = fh->zr; 2605 int i; 2606 2607 dprintk(3, KERN_INFO "%s: %s - munmap(%s)\n", ZR_DEVNAME(zr), 2608 __func__, mode_name(fh->map_mode)); 2609 2610 for (i = 0; i < fh->buffers.num_buffers; i++) { 2611 if (fh->buffers.buffer[i].map == map) 2612 fh->buffers.buffer[i].map = NULL; 2613 } 2614 kfree(map); 2615 2616 /* Any buffers still mapped? */ 2617 for (i = 0; i < fh->buffers.num_buffers; i++) { 2618 if (fh->buffers.buffer[i].map) { 2619 return; 2620 } 2621 } 2622 2623 dprintk(3, KERN_INFO "%s: %s - free %s buffers\n", ZR_DEVNAME(zr), 2624 __func__, mode_name(fh->map_mode)); 2625 2626 if (fh->map_mode == ZORAN_MAP_MODE_RAW) { 2627 if (fh->buffers.active != ZORAN_FREE) { 2628 unsigned long flags; 2629 2630 spin_lock_irqsave(&zr->spinlock, flags); 2631 zr36057_set_memgrab(zr, 0); 2632 zr->v4l_buffers.allocated = 0; 2633 zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE; 2634 spin_unlock_irqrestore(&zr->spinlock, flags); 2635 } 2636 v4l_fbuffer_free(fh); 2637 } else { 2638 if (fh->buffers.active != ZORAN_FREE) { 2639 jpg_qbuf(fh, -1, zr->codec_mode); 2640 zr->jpg_buffers.allocated = 0; 2641 zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE; 2642 } 2643 jpg_fbuffer_free(fh); 2644 } 2645 } 2646 2647 static const struct vm_operations_struct zoran_vm_ops = { 2648 .open = zoran_vm_open, 2649 .close = zoran_vm_close, 2650 }; 2651 2652 static int 2653 zoran_mmap (struct file *file, 2654 struct vm_area_struct *vma) 2655 { 2656 struct zoran_fh *fh = file->private_data; 2657 struct zoran *zr = fh->zr; 2658 unsigned long size = (vma->vm_end - vma->vm_start); 2659 unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; 2660 int i, j; 2661 unsigned long page, start = vma->vm_start, todo, pos, fraglen; 2662 int first, last; 2663 struct zoran_mapping *map; 2664 int res = 0; 2665 2666 dprintk(3, 2667 KERN_INFO "%s: %s(%s) of 0x%08lx-0x%08lx (size=%lu)\n", 2668 ZR_DEVNAME(zr), __func__, 2669 mode_name(fh->map_mode), vma->vm_start, vma->vm_end, size); 2670 2671 if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) || 2672 !(vma->vm_flags & VM_WRITE)) { 2673 dprintk(1, 2674 KERN_ERR 2675 "%s: %s - no MAP_SHARED/PROT_{READ,WRITE} given\n", 2676 ZR_DEVNAME(zr), __func__); 2677 return -EINVAL; 2678 } 2679 2680 if (!fh->buffers.allocated) { 2681 dprintk(1, 2682 KERN_ERR 2683 "%s: %s(%s) - buffers not yet allocated\n", 2684 ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode)); 2685 res = -ENOMEM; 2686 return res; 2687 } 2688 2689 first = offset / fh->buffers.buffer_size; 2690 last = first - 1 + size / fh->buffers.buffer_size; 2691 if (offset % fh->buffers.buffer_size != 0 || 2692 size % fh->buffers.buffer_size != 0 || first < 0 || 2693 last < 0 || first >= fh->buffers.num_buffers || 2694 last >= fh->buffers.buffer_size) { 2695 dprintk(1, 2696 KERN_ERR 2697 "%s: %s(%s) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n", 2698 ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), offset, size, 2699 fh->buffers.buffer_size, 2700 fh->buffers.num_buffers); 2701 res = -EINVAL; 2702 return res; 2703 } 2704 2705 /* Check if any buffers are already mapped */ 2706 for (i = first; i <= last; i++) { 2707 if (fh->buffers.buffer[i].map) { 2708 dprintk(1, 2709 KERN_ERR 2710 "%s: %s(%s) - buffer %d already mapped\n", 2711 ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), i); 2712 res = -EBUSY; 2713 return res; 2714 } 2715 } 2716 2717 /* map these buffers */ 2718 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL); 2719 if (!map) { 2720 res = -ENOMEM; 2721 return res; 2722 } 2723 map->fh = fh; 2724 atomic_set(&map->count, 1); 2725 2726 vma->vm_ops = &zoran_vm_ops; 2727 vma->vm_flags |= VM_DONTEXPAND; 2728 vma->vm_private_data = map; 2729 2730 if (fh->map_mode == ZORAN_MAP_MODE_RAW) { 2731 for (i = first; i <= last; i++) { 2732 todo = size; 2733 if (todo > fh->buffers.buffer_size) 2734 todo = fh->buffers.buffer_size; 2735 page = fh->buffers.buffer[i].v4l.fbuffer_phys; 2736 if (remap_pfn_range(vma, start, page >> PAGE_SHIFT, 2737 todo, PAGE_SHARED)) { 2738 dprintk(1, 2739 KERN_ERR 2740 "%s: %s(V4L) - remap_pfn_range failed\n", 2741 ZR_DEVNAME(zr), __func__); 2742 res = -EAGAIN; 2743 return res; 2744 } 2745 size -= todo; 2746 start += todo; 2747 fh->buffers.buffer[i].map = map; 2748 if (size == 0) 2749 break; 2750 } 2751 } else { 2752 for (i = first; i <= last; i++) { 2753 for (j = 0; 2754 j < fh->buffers.buffer_size / PAGE_SIZE; 2755 j++) { 2756 fraglen = 2757 (le32_to_cpu(fh->buffers.buffer[i].jpg. 2758 frag_tab[2 * j + 1]) & ~1) << 1; 2759 todo = size; 2760 if (todo > fraglen) 2761 todo = fraglen; 2762 pos = 2763 le32_to_cpu(fh->buffers. 2764 buffer[i].jpg.frag_tab[2 * j]); 2765 /* should just be pos on i386 */ 2766 page = virt_to_phys(bus_to_virt(pos)) 2767 >> PAGE_SHIFT; 2768 if (remap_pfn_range(vma, start, page, 2769 todo, PAGE_SHARED)) { 2770 dprintk(1, 2771 KERN_ERR 2772 "%s: %s(V4L) - remap_pfn_range failed\n", 2773 ZR_DEVNAME(zr), __func__); 2774 res = -EAGAIN; 2775 return res; 2776 } 2777 size -= todo; 2778 start += todo; 2779 if (size == 0) 2780 break; 2781 if (le32_to_cpu(fh->buffers.buffer[i].jpg. 2782 frag_tab[2 * j + 1]) & 1) 2783 break; /* was last fragment */ 2784 } 2785 fh->buffers.buffer[i].map = map; 2786 if (size == 0) 2787 break; 2788 2789 } 2790 } 2791 return res; 2792 } 2793 2794 static const struct v4l2_ioctl_ops zoran_ioctl_ops = { 2795 .vidioc_querycap = zoran_querycap, 2796 .vidioc_s_selection = zoran_s_selection, 2797 .vidioc_g_selection = zoran_g_selection, 2798 .vidioc_enum_input = zoran_enum_input, 2799 .vidioc_g_input = zoran_g_input, 2800 .vidioc_s_input = zoran_s_input, 2801 .vidioc_enum_output = zoran_enum_output, 2802 .vidioc_g_output = zoran_g_output, 2803 .vidioc_s_output = zoran_s_output, 2804 .vidioc_g_fbuf = zoran_g_fbuf, 2805 .vidioc_s_fbuf = zoran_s_fbuf, 2806 .vidioc_g_std = zoran_g_std, 2807 .vidioc_s_std = zoran_s_std, 2808 .vidioc_g_jpegcomp = zoran_g_jpegcomp, 2809 .vidioc_s_jpegcomp = zoran_s_jpegcomp, 2810 .vidioc_overlay = zoran_overlay, 2811 .vidioc_reqbufs = zoran_reqbufs, 2812 .vidioc_querybuf = zoran_querybuf, 2813 .vidioc_qbuf = zoran_qbuf, 2814 .vidioc_dqbuf = zoran_dqbuf, 2815 .vidioc_streamon = zoran_streamon, 2816 .vidioc_streamoff = zoran_streamoff, 2817 .vidioc_enum_fmt_vid_cap = zoran_enum_fmt_vid_cap, 2818 .vidioc_enum_fmt_vid_out = zoran_enum_fmt_vid_out, 2819 .vidioc_enum_fmt_vid_overlay = zoran_enum_fmt_vid_overlay, 2820 .vidioc_g_fmt_vid_cap = zoran_g_fmt_vid_cap, 2821 .vidioc_g_fmt_vid_out = zoran_g_fmt_vid_out, 2822 .vidioc_g_fmt_vid_overlay = zoran_g_fmt_vid_overlay, 2823 .vidioc_s_fmt_vid_cap = zoran_s_fmt_vid_cap, 2824 .vidioc_s_fmt_vid_out = zoran_s_fmt_vid_out, 2825 .vidioc_s_fmt_vid_overlay = zoran_s_fmt_vid_overlay, 2826 .vidioc_try_fmt_vid_cap = zoran_try_fmt_vid_cap, 2827 .vidioc_try_fmt_vid_out = zoran_try_fmt_vid_out, 2828 .vidioc_try_fmt_vid_overlay = zoran_try_fmt_vid_overlay, 2829 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 2830 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 2831 }; 2832 2833 static const struct v4l2_file_operations zoran_fops = { 2834 .owner = THIS_MODULE, 2835 .open = zoran_open, 2836 .release = zoran_close, 2837 .unlocked_ioctl = video_ioctl2, 2838 .mmap = zoran_mmap, 2839 .poll = zoran_poll, 2840 }; 2841 2842 struct video_device zoran_template = { 2843 .name = ZORAN_NAME, 2844 .fops = &zoran_fops, 2845 .ioctl_ops = &zoran_ioctl_ops, 2846 .release = &zoran_vdev_release, 2847 .tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM, 2848 }; 2849 2850